Applications of Spectrum Analyser
Last Answer : Applications of Spectrum Analyser are as follows: i) It is used to study the RF spectrum produced in microwave instrument. ii) It is used for testing of RF interference. iii) It is used for measurement ... a parametric amplifier. xi) It is used to measure the modulation index of an AM wave.
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Aug 21, 2019
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anonymous

i) Explain electromagnetic spectrum with neat diagram. ii) Explain atmospheric noise with example.
Last Answer : Explanation:- The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths The electromagnetic spectrum covers ... spread over the complete frequency spectrum used for radio communication. Example: Lightning
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Aug 4, 2019
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anonymous

Spectrum analyzer
Last Answer : Spectrum analyzer Spectrum analyzer is use for measuring signal in frequency domain. It measure modulation, distortion and noise. Spectrum analyzer measure the electrical input signal, for measuring ... of the signal. Other control include dynamic range, sweep speed and resolution bandwidth.
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Aug 9, 2017
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anonymous

Last Answer : If B is the flux density, I the length of conductor and v the velocity of conductor, then induced e.m.f. is given by Blv.
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Mar 20, 2018
by
anonymous

If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be A) Large in amplitude B) Small in amplitude C) Distorted D) Distortion less
Last Answer : If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be Distorted
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Jun 18, 2018
by
anonymous

The sampling rate to avoid aliasing for the signal m(t) = 100 cos 200ωt will be A) ≥1/25 sec B) ≥1/50 sec C) ≤1/25 sec D) ≤ 1/50 sec
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Jun 18, 2018
by
anonymous
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Define magnetic flux density and state its formula.
Last Answer : The magnetic flux per unit area is called as magnetic flux density. Magnetic flux density is denoted by B. The formula for magnetic flux density is Weber per metre square or Tesla. Mathematically ... the unit of magnetic flux density is Weber per metre square which is also called as Tesla.
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Aug 8, 2018
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anonymous

In an induction motor if the flux density is reduced to one-half, of its normal value then the torque will (1) reduce to one-half (2) reduce to one-fourth (3) remain unchanged (4) increase four times
Last Answer : In an induction motor if the flux density is reduced.to one-half, of its normal value then the torque will reduce to one-fourth
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May 1, 2018
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anonymous
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Flux density formula
Last Answer : Flux density formula
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Jun 11, 2019
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anonymous

Define the following terms: i) Magnetic flux density, ii) Reluctance, iii) Magneto-motive force, iv) Permeance.
Last Answer : (i) Magnetic flux density (B): It is the magnetic flux per unit area measured at right angles to the flux path. (Its unit is weber/m2 or tesla). (ii) Reluctance: It is the ... flux to set up through it and it is reciprocal of reluctance. Permeance = 1/ Reluctance. Unit: weber/ampere.
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Sep 4, 2018
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anonymous

Give the relation between magnetic field strength, magnetic flux density and permeability.
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Aug 8, 2018
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anonymous

In lead acid battery the density of acid indicates the (1) charge of the battery (2) level of acid (3) e.m.f of the battery (4) damage of the plates
Last Answer : In lead acid battery the density of acid indicates the charge of the battery
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Apr 30, 2018
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anonymous

What is the permissible flux density in case of cold rolled grained oriented steel?
Last Answer : The permissible flux density in case of cold rolled grained oriented steel is 1.7 Wb/m2.
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Mar 19, 2018
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anonymous

Last Answer : Flux density is denoted by B. And it is given as B = flux/ area Where, the unit of flux is Weber and unit of area is meter square. So the unit of flux density is weber per meter square which is also called as Tesla.
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Sep 30, 2017
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anonymous

An energy signal has G(f) = 10. Its energy density spectrum is: (1) 10 (2) 100 (3) 50 (4) 20
Last Answer : An energy signal has G(f) = 10. Its energy density spectrum is: 100.
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Apr 9, 2018
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anonymous

.2.The period of a signal is 10ms. What is its frequency in kilohertz?
Last Answer : 100
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Apr 15
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anonymous

In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address A) 0000 H B) 002C H C) 0024 H D) 0004 H
Last Answer : In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address 0024 H
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Jun 18, 2018
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anonymous

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Explain Briefly What Happens When The Intr Signal Goes High In The 8085?
Last Answer : Answer :The INTR is a maskable interrupt for the 8085. It has the lowest priority and is also non vectored. When this INTR signal goes into the high state the following things occur / ... the processor saves the address of new instruction into the STACK and an interrupt service subroutine begins.
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State different types of electrical signal and draw all types of waveforms.
Last Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms
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May 2, 2020
by
anonymous

basic characteristics of sound signal.
Last Answer : Level and loudness: The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound. The loudness of a ... the reproducing system should be capable of handling the maximum and minimum power in the same ratio.
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Sep 2, 2019
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anonymous
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What is the significance of signal conditioner? Explain the need of following in mechatronics system. i) Isolator ii) Filter iii) Amplifier iv) Data converter
Last Answer : Significance: Signal conditioning means manipulating an analog signal in such a way that it meets the requirements of the next stage for further processing. Signal inputs accepted by signal ... -frequency converters, current-to-voltage converters, current loop converters, and charge converters.
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Aug 9, 2019
by
anonymous

List different methods of demodulation of FM signal.
Last Answer : Balanced Slope detection Ratio detector Foster Seeley discriminator Phase locked loop demodulator
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Aug 3, 2019
by
anonymous

For a signal conditioner explain the terms linearization and signal conversion.
Last Answer : Definition : 1. linearization : Many primary elements produce nonlinear outputs and the signal must be linearized to produce a nearly ideal calibration. Specialized analog circuits such as offsetting circuits, ... signal. Even computer algorithms are also used. 2.Signal conversion :
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Jul 21, 2019
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anonymous

Analog signal
Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
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Jul 6, 2019
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anonymous
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If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m
Last Answer : If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m
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Jun 18, 2018
by
anonymous

What is the Laplace transform of step signal of 5 units magnitude? A) 5s B) 5/s C) s/5 D) 1/s
Last Answer : What is the Laplace transform of step signal of 5 units magnitude? A) 5s B) 5/s C) s/5 D) 1/s
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Jun 18, 2018
by
anonymous

The time base signal in Cathode Ray Oscilloscope (CRO) is (1) A square wave signal (2) A sawtooth signal (3) A triangular wave signal (4) A sinusoidal signal
Last Answer : 2 Saw tooth
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May 1, 2018
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anonymous
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Integration of step signal gives (A) Impulse signal. (B) Ramp function. (C) Parabola. (D) Square pulse.
Last Answer : Integration of step signal gives Ramp function.
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Apr 28, 2018
by
anonymous

The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V
Last Answer : The standard for long distance analog signal transmission in process control industry is 4-20 mA
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Apr 26, 2018
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anonymous

What do you mean by signal processing?
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Mar 11, 2018
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anonymous

What is a signal in science?
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Mar 11, 2018
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anonymous

What do you mean by signal and system?
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Mar 11, 2018
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anonymous

Explain transformer isolated drive circuits providing both signal and power.
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Mar 11, 2018
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anonymous

Can you convert analog signal to digital?
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Mar 10, 2018
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anonymous

What is the use of digital signal processing?
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Mar 10, 2018
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anonymous

What are the advantages of a digital signal?
Last Answer : It has only two variable input and output (low or high) (0 or 5).
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Mar 10, 2018
by
anonymous

How does signal processing work?
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Mar 10, 2018
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anonymous

Why digital signal processing is important?
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Mar 10, 2018
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anonymous

What is the use of signal flow graph?
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Mar 10, 2018
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anonymous

106 views
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Jul 13, 2019
by
S. T.
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The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs
Last Answer : The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs
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Jun 18, 2018
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anonymous

A project activity has several components as indicated below; S. No. Activity Preceded by Duration (in Weeks) 1 A - 8 2 B A 6 3 C A 12 4 D B 4 5 E D 5 6 F B 12 7 G E& F ... H 5 10 J I & G 6 d. Prepare a PERT chart, estimate the duration of the project and identify the critical path.
Last Answer : PERT Diagram based on Activity on Arrow . E D 5 G B 5 9 J, 6 A 6 F,12 I ,5 8 c 12 H 8 OR PERT Diagram based on Activity on Node …………………….6 marks a. Critical Path: A-B-F-G-J …………………….1 mark b. Estimated Project Duration: 41 weeks
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Aug 7, 2021
by
anonymous

Which of the following device is used for coupling microwave energy? A) Resonator B) Waveguide C) Loop D) Antenna
Last Answer : A
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Jun 18, 2018
by
anonymous

Phantom loading for testing of energy meter is used (A) to isolate the current and potential circuits (B) to increase power loss during testing (C) for meters having low current ratings (D) to test meters having a large current rating for which loads may not be available
Last Answer : B
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Apr 28, 2018
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anonymous

what is fermi energy
Last Answer : Fermi energy is the part of electron band diagram.Fermi energy is highest energy that the electron assume at T = 0 K. Fermi level comes in between conduction band and valance band. In case of ... , In case of semiconductor energy gap is small, And in case of conductor energy gap is overlap.
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Jan 17, 2018
by
Razib

1 kg of wood contains 15% moisture and 5% hydrogen by weight. How much water is evaporated during complete combustion of 1kg of wood? a) 0.6 kg b) 200 g c) 0.15 kg d) none of the above
Last Answer : b)200 g
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Aug 6, 2021
by
anonymous

Assume CO2 equivalent emissions by the use of a 60 W incandescent lamp are of the order of 60 g/hr. If it is replaced by a 5 W LED lamp then the equivalent CO2 emissions will be a) nil b) 5 g/hr c) 12 g/hr d) 300 g/hr
Last Answer : b) 5 g/hr
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Aug 6, 2021
by
anonymous

A company has to choose between two projects whose cash flows are as indicated below; Project 1: i. Investment - Rs. 15 Lakhs ii. Annual cost savings - Rs. 4 lakhs. iii. Bi-annual ... years xii. Salvage Value- 2 lakhs Which project should the company choose? The annual discount rate is 12
Last Answer : Year Project 1 Project 2 Outgo Saving NPV Outgo Saving NPV 0 15.0 0 =-15.0 14.0 0 = -14 1 0 4.0 = (4 / (1+.12)1 = 3.571 0.2 3.5 = (3.3 / (1+.12)1 = 2.95 2 0.5 4.0 = (3.5 / (1+.12)2 = 2.79 0.2 3.5 ... (1+.12)8 = 3.43 0.2 5.5 (3.5+2) = (5.3 / (1+.12)8 = 2.14 NPV = + 2.301 @12% = + 0.15
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asked
Aug 7, 2021
by
anonymous
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