Harmonic distortion is due to

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Harmonic distortion is due to Non-linear behaviour of circuit elements

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Which distortion is least objectionable in case of audio amplifers? A) Phase distortion B) Frequency distortion C) Harmonic distortion D) Inter modulation distortion.

Description : Which distortion is least objectionable in case of audio amplifers? A) Phase distortion B) Frequency distortion C) Harmonic distortion D) Inter modulation distortion.

Last Answer : A) Phase distortion

When measuring harmonic distortion, you set the signal generator to input a 15-kHz test signal. To what frequency should you set the wave analyzer?

Description : When measuring harmonic distortion, you set the signal generator to input a 15-kHz test signal. To what frequency should you set the wave analyzer?

Last Answer : 45 kHz.

What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Description : What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Last Answer : Third-order harmonic.

A recorder’s harmonic-distortion specification reads 2% third harmonic of a 100-kHz signal at 60 ips. What does this mean?

Description : A recorder’s harmonic-distortion specification reads 2% third harmonic of a 100-kHz signal at 60 ips. What does this mean?

Last Answer : The recorder has 2% third-harmonic distortion of a 100-kHz signal at 60 ips.

___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.

Description : ___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.

Last Answer : wein bridge

What is the effect of following on induction motors: (1) Voltage unbalance (2) Harmonic distortion

Description : What is the effect of following on induction motors: (1) Voltage unbalance (2) Harmonic distortion

Last Answer : i) Effect of voltage unbalance: For three phase motors this leads to unequal currents in the three phase windings that result in unbalance in the fields produced due to which negative phase ... currents thereon). This leads to motor failures, lower life and improper torque speed characteristics. 

The second harmonic distortion is defined as the

Description : The second harmonic distortion is defined as the A) Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency B) Harmonic distortion due to only second harmonic component C) Sum of distortion of first and second harmonic components in the output 

Last Answer : The second harmonic distortion is defined as the Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency

Harmonic distortion of the signal is produced in an RC coupled transistor amplifier. The probable

Description : Harmonic distortion of the signal is produced in an RC coupled transistor amplifier. The probable component responsible for this distortion is  (A) The transistor itself  (B) the power supply Vcc  (C) the coupling capacitor Cc  (D) the biasing resistors

Last Answer : Harmonic distortion of the signal is produced in an RC coupled transistor amplifier. The probable component responsible for this distortion is The transistor itself 

To get minimum harmonic distortion in the output, a 34 to 34 cyclo-converter requires :

Description : To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires :  (A) 12 SCRs (B) 18 SCRs (C) 36 SCRs (D) 72 SCRs

Last Answer : To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires : 36 SCRs

Due to energy dissipation by viscous forces in air, if simple harmonic variations of a pendulum die away after some time, then oscillation is said to be: A. undamped B. free C. damped D. dependent

Description : Due to energy dissipation by viscous forces in air, if simple harmonic variations of a pendulum die away after some time, then oscillation is said to be: A. undamped B. free C. damped D. dependent

Last Answer : damped

A weight of 50 N is suspended from a spring of stiffness 4000N/m and subjected to a harmonic force of magnitude 60N and frequency 60 Hz. what will be the static displacement of the spring due to maximum applied force A. 0.015m B. 0.15 m C. 15 m D. 150m

Description : A weight of 50 N is suspended from a spring of stiffness 4000N/m and subjected to a harmonic force of magnitude 60N and frequency 60 Hz. what will be the static displacement of the spring due to maximum applied force A. 0.015m B. 0.15 m C. 15 m D. 150m

Last Answer : B. 0.15 m

The equation, X = A cos(wt + f) (read: X equals A times the cosine of omega t + phi (fee)), can represent an expression for: w) accelerating due to gravity x) uniform straight line motion y) dc current z) a simple harmonic oscillator

Description : The equation, X = A cos(wt + f) (read: X equals A times the cosine of omega t + phi (fee)), can represent an expression for: w) accelerating due to gravity x) uniform straight line motion y) dc current z) a simple harmonic oscillator

Last Answer : ANSWER: Z -- A SIMPLE HARMONIC OSCILLATOR

________ is a typeof transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal. A) Attenuation B) Distortion C) Noise D) Decibel

Description : ________ is a typeof transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal. A) Attenuation B) Distortion C) Noise D) Decibel

Last Answer : Distortion

________ is a typeof transmission impairment in which the signal loses strength due to theresistance of the transmission medium. A) Attenuation B) Distortion C) Noise D) Decibel

Description : ________ is a typeof transmission impairment in which the signal loses strength due to theresistance of the transmission medium. A) Attenuation B) Distortion C) Noise D) Decibel

Last Answer : Attenuation

..................... is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium. (A) Attenuation (B) Distortion (C) Noise (D) Decibel

Description : ..................... is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium. (A) Attenuation (B) Distortion (C) Noise (D) Decibel

Last Answer : (A) Attenuation

A square wave has a period of 60 s. The first odd harmonic is:

Description : A square wave has a period of 60 s. The first odd harmonic is: A. 5 kHz B. 50 kHz C. 500 kHz D. 33.33 kHz

Last Answer : A square wave has a period of 60 s. The first odd harmonic is: 50 kHz

working of distortion factor meter with block diagram

Description : working of distortion factor meter with block diagram

Last Answer : Working : Initially the switch S is kept at position 1.The attenuator gets excluded and the bridge T network is adjusted for full suppression of fundamental frequency and hence we get ... is obtained on the meter.Thus the total rms distortion is indicated by the reading of attenuator. 

In a distortion factor meter, the filter at the front end is used suppress

Description : In a distortion factor meter, the filter at the front end is used suppress   (A) odd harmonics (B) even harmonics (C) fundamental component (D) dc component

Last Answer : In a distortion factor meter, the filter at the front end is used suppress fundamental component

The type of power amplifier that exhibits crossover distortion in its output is :

Description : The type of power amplifier that exhibits crossover distortion in its output is : (A) Class A (B) Class B (C) Class AB (D) Class C

Last Answer : The type of power amplifier that exhibits crossover distortion in its output is  Class B

A particle in simple Harmonic Motion while passing through mean position will have a.Maximum kinetic energy and minimum potential energy b.Average kinetic energy and average potential energy c.Minimum kinetic energy and maximum potential energy d.Maximum kinetic energy and maximum e.Minimum kinetic energy and minimum potential energy

Description : A particle in simple Harmonic Motion while passing through mean position will have a.Maximum kinetic energy and minimum potential energy b.Average kinetic energy and average potential energy c. ... energy d.Maximum kinetic energy and maximum e.Minimum kinetic energy and minimum potential energy

Last Answer : a. Maximum kinetic energy and minimum potential energy

The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to the square of angular velocity d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity

Description : The periodic time of a body moving in Simple Harmonic Motion is a.Directly proportional to its angular velocity b.Directly proportional to the weight of the body c.Inversely proportional to ... d.Directly proportional to the momentum of swinging body e.Inversely proportional to the angular velocity

Last Answer : e. Inversely proportional to the angular velocity

A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Description : A body in Simple Harmonic Motion will attain maximum velocity when it passes through a.Point of 0.75 amplitude b.Extreme point of the oscillation of L.H.S. c.Point of half amplitude d.Extreme point of the oscillation at R.H.S. e.Mean position

Last Answer : e. Mean position

The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum reactions on the ground would be a.3.6 tonnes b.2.4 tonnes c.4.0 tonnes d.4.8 tonnes e.4.4 tonnes

Description : The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum ... would be a.3.6 tonnes b.2.4 tonnes c.4.0 tonnes d.4.8 tonnes e.4.4 tonnes

Last Answer : e. 4.4 tonnes

A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The length of pendulum should be doubled c.The mass of the bob should be halved d.The length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Description : A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The ... length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Last Answer : a. The length of pendulum should be quadrupled

A body is executing simple harmonic motion of amplitude 1 cm. Its velocitywhile passing through the central point is 10 mm/sec. Its frequency will be a.2.99 rps b.2.22 rps c.1 rps d.1.59 rps e.1.77 rps

Description : A body is executing simple harmonic motion of amplitude 1 cm. Its velocitywhile passing through the central point is 10 mm/sec. Its frequency will be a.2.99 rps b.2.22 rps c.1 rps d.1.59 rps e.1.77 rps

Last Answer : c. 1 rps

A body is vibrating with simple harmonic motion of aplitude 5 cm frequency 10 vibrations per second. The maximum value of velocity in cm/s will be a.3.14 cm/s b.314 cm/s c.3140 cm/s d.31.4 cm/s e.31400 cm/s

Description : A body is vibrating with simple harmonic motion of aplitude 5 cm frequency 10 vibrations per second. The maximum value of velocity in cm/s will be a.3.14 cm/s b.314 cm/s c.3140 cm/s d.31.4 cm/s e.31400 cm/s

Last Answer : b. 314 cm/s

Thyroid gland is activated by which harmonic for the secretion of thyroxin? -Do You Know?

Description : Thyroid gland is activated by which harmonic for the secretion of thyroxin? -Do You Know?

Last Answer : answer:

A source frequency f gives t beats when sounded with a frequency 200Hz. The second harmonic of same source gives 10 beats when sounded with a source o

Description : A source frequency f gives t beats when sounded with a frequency 200Hz. The second harmonic of same source gives 10 beats when sounded with a source o

Last Answer : A source frequency f gives t beats when sounded with a frequency 200Hz. The second harmonic of same source gives 10 ... Hz` C. `205 Hz` D. `195 Hz`

An open pipe is suddenly closed at one end with the result that the frequency of third harmonic of he closed pipe is found to be higher by 100 Hx than

Description : An open pipe is suddenly closed at one end with the result that the frequency of third harmonic of he closed pipe is found to be higher by 100 Hx than

Last Answer : An open pipe is suddenly closed at one end with the result that the frequency of third harmonic of he closed pipe ... 300 Hz` C. `240 Hz` D. `480 Hz`

An insect of negligible mass is sitting on a block of mass M, tied with a spring of force constant K. The block performs simple harmonic motion with a

Description : An insect of negligible mass is sitting on a block of mass M, tied with a spring of force constant K. The block performs simple harmonic motion with a

Last Answer : An insect of negligible mass is sitting on a block of mass M, tied with a spring of force constant K. The block ... /2 sqrt(k/M)` D. `2A sqrt(k/M)`

What machine shows that harmonic tremors indicate moving magma?

Description : What machine shows that harmonic tremors indicate moving magma?

Last Answer : Feel Free to Answer

In the 1940s jazz underwent a major change. Players began to include more notes in their harmonic palette. For the most part earlier players had stuck to the major and pentatonic scales in their impro?

Description : In the 1940s jazz underwent a major change. Players began to include more notes in their harmonic palette. For the most part earlier players had stuck to the major and pentatonic scales in their impro?

Last Answer : Concluding sentence

In the 1940s jazz underwent a major change. Players began to include more notes in their harmonic palette. For the most part earlier players had stuck to the major and pentatonic scales in their impro?

Description : In the 1940s jazz underwent a major change. Players began to include more notes in their harmonic palette. For the most part earlier players had stuck to the major and pentatonic scales in their impro?

Last Answer : Concluding sentence

The harmonic currents in a power transformer does not cause increase in: a) Secondary voltage b) Core loss c) Copper loss d) Magnetic interference with protective relays

Description : The harmonic currents in a power transformer does not cause increase in: a) Secondary voltage b) Core loss c) Copper loss d) Magnetic interference with protective relays

Last Answer : Ans: A

According to Malthusian theory of population - (1) Population increases in geometric ratio, food supply increases in arithmetic ratio (2) Population increases in arithmetic ratio, food supply increases in geometric ratio (3) Population increases in a harmonic mean, food supply increases in geometric ratio (4) Population increases in a harmonic ratio, food supply increases in a arithmetic ratio

Description : According to Malthusian theory of population - (1) Population increases in geometric ratio, food supply increases in arithmetic ratio (2) Population increases in arithmetic ratio, food supply increases in ... (4) Population increases in a harmonic ratio, food supply increases in a arithmetic ratio

Last Answer : (1) Population increases in geometric ratio, food supply increases in arithmetic ratio Explanation: In his 1798 work, An Essay on the Principle of Population, Malthus ermined the relationship between population ... e. by the repeated addition of a uniform increment in each uniform interval of time).

Which of the following is an example of simple harmonic motion? (1) Earth spinning on its axis (2) Simple pendulum motion (3) Bali bouncing on floor (4) Motion of a ceiling fan

Description : Which of the following is an example of simple harmonic motion? (1) Earth spinning on its axis (2) Simple pendulum motion (3) Bali bouncing on floor (4) Motion of a ceiling fan

Last Answer : (2) Simple pendulum motion Explanation: When a body moves about a mean position in such a way that the acceleration is proportional to the displacement and is always directed towards the mean ... to execute a simple harmonic motion. The motion of a simple pendulum falls under this category.

The motion of a body that repeats itself after a regular interval of time is – (1) a periodic motion (2) a simple harmonic motion (3) an aperiodic motion (4) an oscillatory motion

Description : The motion of a body that repeats itself after a regular interval of time is – (1) a periodic motion (2) a simple harmonic motion (3) an aperiodic motion (4) an oscillatory motion

Last Answer : (1) a periodic motion Explanation: The motion of a body that repeats itself after a regular interval of time is called 'Periodic Motion'. Simple Harmonic Motion is a type of periodic motion where the restoring force is directly proportional to the displacement.

If the driving torque, such as that produced by a diesel engine, creates pulsations when coupled with a synchronous generator operating in parallel; the generator rotor may be periodically pulled ahead or behind its normal position as it rotates. This co A. hunting B. direct coupling C. peaking D. harmonic coupling

Description : If the driving torque, such as that produced by a diesel engine, creates pulsations when coupled with a synchronous generator operating in parallel; the generator rotor may be periodically pulled ahead or behind ... as it rotates. This co A. hunting B. direct coupling C. peaking D. harmonic coupling

Last Answer : Answer: A

A Hertz antenna is operating on a frequency of 2182 kHz and consists of a horizontal wire that is hanged between two towers. What is the frequency of its third harmonic? A. 727 kHz B. 6546 kHz C. 436 kHz D. 6.546 kHz

Description : A Hertz antenna is operating on a frequency of 2182 kHz and consists of a horizontal wire that is hanged between two towers. What is the frequency of its third harmonic? A. 727 kHz B. 6546 kHz C. 436 kHz D. 6.546 kHz

Last Answer : B. 6546 kHz

Harmonic suppressor connected to an antenna. A. Low-pass filter B. High-pass filter C. M-derived filter D. Constant-K

Description : Harmonic suppressor connected to an antenna. A. Low-pass filter B. High-pass filter C. M-derived filter D. Constant-K

Last Answer : A. Low-pass filter

What are the methods of reduction of harmonic content?

Description : What are the methods of reduction of harmonic content?

Last Answer : a. Transformer connections b. Sinusoidal PWM c. Multiple commutation in each cycle d. Stepped wave inverters

What is the seventh harmonic of a 100 MHz quarter wavelength antenna? A. 14.28 MHz B. 107 MHz C. 149 MHz D. 700 MHz

Description : What is the seventh harmonic of a 100 MHz quarter wavelength antenna? A. 14.28 MHz B. 107 MHz C. 149 MHz D. 700 MHz

Last Answer : D. 700 MHz

In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Description : In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Last Answer : B. Frequency

What are the methods adopted to reduce harmonic torques?

Description : What are the methods adopted to reduce harmonic torques?

Last Answer : The methods used for reduction or elimination of harmonic torques are chording, integral slot winding, skewing and increasing the length of air gap.

The lowest frequency produced by an instrument. A. Harmonic B. Fundamental C. Midrange D. 0 Hz

Description : The lowest frequency produced by an instrument. A. Harmonic B. Fundamental C. Midrange D. 0 Hz

Last Answer : B. Fundamental

Harmonic suppressor connected to an antenna. A. High pass filter B. Low pass filter C. Tank circuit D. M-derived filter

Description : Harmonic suppressor connected to an antenna. A. High pass filter B. Low pass filter C. Tank circuit D. M-derived filter

Last Answer : B. Low pass filter

Lowest frequency produced by a musical instrument. A. Fundamental B. Midrange C. Period D. Harmonic

Description : Lowest frequency produced by a musical instrument. A. Fundamental B. Midrange C. Period D. Harmonic

Last Answer : A. Fundamental

Types of Harmonic oscillator?

Description : Types of Harmonic oscillator?

Last Answer : A5: There are many ways to implement harmonic oscillators, because there are different ways to amplify and filter. Some of the different circuits are: Hartley oscillator Colpitts oscillator Cross- ... crystal oscillator Phase-shift oscillator RC oscillator (Wien Bridge and "Twin-T")

What is Harmonic oscillator?

Description : What is Harmonic oscillator?

Last Answer : The harmonic, or linear, oscillator produces a sinusoidal output. The basic form of a harmonic oscillator is an electronic amplifier with the output attached to an electronic filter, and the ... around the loop, being filtered and re-amplified until it increasingly resembles the desired signal.

Period of simple harmonic motion of a spiral spring or elastic thread is given by A. T = 2π × (extension produced/gravitational field strength) B. T = 2π × (extension produced/√(gravitational field strength)) C. T = 2π × (√(extension produced)/gravitational field strength) D. T = 2π × √(extension produced/gravitational field strength)

Description : Period of simple harmonic motion of a spiral spring or elastic thread is given by A. T = 2π (extension produced/gravitational field strength) B. T = 2π (extension produced/√( ... (extension produced)/gravitational field strength) D. T = 2π √(extension produced/gravitational field strength)

Last Answer : T = 2π × √(extension produced/gravitational field strength)