A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of?
B.12 kHz
C.18 kHz
D.1.3 MHz
Description : When a sine wave has a frequency of 100 Hz in 12 s it goes through? A.1/100 cycle B.12 cycles C.120 cycles D.1,200 cycles
Last Answer : When a sine wave has a frequency of 100 Hz in 12 s it goes through? A.1/100 cycle B.12 cycles C.120 cycles D.1,200 cycles
Description : The average value of a 12 V peak sine wave over one complete cycle is? A.0 V B.1.27 V C.7.64 V D.6.37 V
Last Answer : The average value of a 12 V peak sine wave over one complete cycle is? A.0 V B.1.27 V C.7.64 V D.6.37 V
Description : If the peak value of a sine wave is 30 V, the rms value is? A.19.08 V B.7.07 V C.0.707 V D.23.10 V
Last Answer : If the peak value of a sine wave is 30 V, the rms value is? A.19.08 V B.7.07 V C.0.707 V D.23.10 V
Description : An OP amp has a slew rate of 1V/µs. At a signal frequency of 0.1 MHz, the maximum undistorted sine wave amplitude is (a) 8V (b) 4.82 V (c) 2.02 V (d) 1.592 V
Last Answer : Slew rate = 2πfv where v is the amplitude V=(1/2π*0.1) = 1.592V
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.
Description : A _________ sine wave is not useful in data communications; we need to send a _______signal. A) composite; single-frequency B) single-frequency; composite C) single-frequency;double-frequency D) none of the above
Last Answer : single-frequency; composite
Description : A sine wave in the ______domain can be representedby onesingle spikein the _____domain. A) time; frequency B) frequency; time C) time; phase D) phase; time
Last Answer : time; frequency
Description : What determines the frequency of a sine wave?
Last Answer : The rate at which the vector which is generating the sine wave is rotating.
Description : (i) Draw the time domain and frequency domain representation of sine wave and triangular wave. (ii) Define frequency and wavelength.
Last Answer : (i)Time domain and frequency domain representation of sine wave time domain and frequency domain representation of triangular wave. ii) Define frequency and wavelength. Frequency ... : Wavelength can be defined as the distance between two successive crests troughs of a wave.
Last Answer : A sine wave has a frequency of 50 Hz. Its angular frequency is 100 n radian/second.
Description : When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output: (1) Has no offset (2) Approaches to triangular waveshape (3) Is pure sinusoidal (4) Is square wave
Last Answer : When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output: Approaches to triangular waveshape
Description : The frequency of ultrasound wave is typically – (1) Above 20 kHz (2) Above 20,000 kHz (3) Below 20 kHz (4) Below 02 kHz
Last Answer : (3) Below 20 kHz Explanation: Ultrasound is a cyclic sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from " ... in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.
Description : Tropospheric scatter is a method of sky wave propagation for which of the following frequency bands? A. 300 kHz to 3 MHz B. 3 MHz to 30 MHz C. 30 MHz to 300 MHz D. 300 MHz to 3 GHz
Last Answer : D. 300 MHz to 3 GHz
Description : Which of the following frequency bands is best suited for sky wave propagation? A. 30 to 300 kHz B. 3 MHz to 30 MHz C. 30 MHz to 300 MHz D. 3 GHz to 30 GHz
Last Answer : B. 3 MHz to 30 MHz
Description : Which of the following frequency bands is best suited for ground wave propagation? A. 30 to 300 kHz B. 300 kHz to 3 MHz C. 3 MHz to 30 MHz D. 30 MHz to 300 MHz
Last Answer : A. 30 to 300 kHz
Description : What is the frequency of a 2-cm sound wave in sea water at 25˚C? A. 76 kHz B. 76 Hz C. 76 MHz D. 76 mHz
Last Answer : A. 76 kHz
Description : The frequency of ultrasound wave is typically (1) Above 20 kHz (2) Above 20,000 kHz (3) Below 20 kHz (4) Below 02 kHz
Last Answer : Above 20 kHz
Description : The carrier waves used for the radio transmission have frequency upto A. 15 KHz B. 30 KHz C. 90 KHz D. 150 KHz
Last Answer : ANSWER: B
Description : Industrial noise frequency is between _____. A. 0 to 10 KHz B. 160 MHz to 200 MHz C. 15 to 160 MHz D. 200 to 3000 MHz
Last Answer : C. 15 to 160 MHz
Description : Industrial noise frequency is between _________. A. 200 to 3000 Mhz B. 15 to 160 Mhz C. 0 to 10 Khz D. 20 Ghz
Last Answer : B. 15 to 160 Mhz
Description : What is the deviation ratio for an FM-phone signal having a maximum frequency swing of plus or minus 5 kHz and accepting a maximum modulation rate of 3kHz? A. 60 B. 0.16 C. 0.6 D. 1.66
Last Answer : D. 1.66
Description : For a sample rate of 40 kHz, determine the maximum analog input frequency A. 30 kHz B. 40 kHz C. 20 kHz D. 10 kHz
Last Answer : C. 20 kHz
Description : Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it ... sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps
Last Answer : (C) 128 kbps
Description : RF Design Question: 40MHz to 10MHz sine wave?
Last Answer : Is the 40 MHz manufacturered digitally? Do you have access to the clock/driver oscillator? Is everything analog? Can you add a 30 MHz signal and filter out the resulting 10 and 70 Mhz beats? You can synthesize a 10 MHz yourself with either a 555 timer or a Statek chip.
Description : Why is sine wave used more ?
Last Answer : Sine wave is used more because the output of the circuit with sine wave input is better. Calculation of sinusoidal voltage , current etc. is easy. Disruption caused by harmonics is less. Noise of AC circuit with sine wave is less.
Description : Otp shows then disconnect's in zelio sine wave inverter luminous 1600va?
Last Answer : Need Answer
Description : At what phase angle is the voltage momentarily constant in a sine wave?
Last Answer : We often see the peak and trough (maximum positive and maximumnegative excursions) of the sine wave considered as points ofmomentarily constant voltage. Those points are at phase angles of90 degrees and at 270 degrees.
Description : What is The time it takes for a sine wave to complete one cycle is called?
Last Answer : Feel Free to Answer
Description : Should I Buy a Modified or Pure Sine Wave Inverter?
Last Answer : Many people are unsure of the differences between a modified or pure sine wave inverter. Think of a modified sine wave inverter as a set of stairs. You will get power in blocks and there will be times ... to draw a lot of power should always be run on a sine wave inverter for consistency and safety.
Description : The RMS value of a sine-wave current may also be expressed as the _____________. A. average value B. maximum value C. effective value D. instantaneous value
Last Answer : Answer: C
Description : The agreed standard for measuring loudness is the loudness sensation produced by a 1000 Hz sine wave _____ dB above the listener’s threshold of hearing. A. 80 B. 50 C. 30 D. 40
Last Answer : D. 40
Description : A modulation which does not follow the sine wave pattern, it produces undesirable harmonics such as spurious emission A. 0% modulated B. Over-modulated C. Unmodulated D. 100% modulated
Last Answer : B. Over-modulated
Description : Graph of alternating current is a A. cos wave B. tan wave C. curve D. sine wave
Last Answer : sine wave
Description : If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is________ V. A) 2 B) 1 C) -2 D) between -2 and 2
Last Answer : -2
Description : A sine wave is ______ A) periodic and continuous B) aperiodicand continuous C) periodicand discrete D) aperiodicand discrete
Last Answer : periodic and continuous
Description : When sine wave is given as input to Schmitt trigger then its generates a) Sine wave b) Saw tooth wave c) Triangle wave d) Square wave
Last Answer : Ans: Square wave
Description : Can a pure sine wave be integrated? Why?
Last Answer : A pure sine wave cannot be integrated; it contains no harmonics.
Description : Which portion of a sine-wave input is retained in the output of a series-negative limiter?
Last Answer : Positive.
Description : Which portion of a sine-wave input is retained in the output of a series-positive limiter?
Last Answer : Negative.
Description : In the inverting configuration, what is the voltage (for all practical purposes) at the inverting input to the operational amplifier if the input signal is a 1-volt, peak-to-peak sine wave?
Last Answer : 0 volts.
Description : Name a disadvantage of sine-wave oscillator synchronizers.
Last Answer : It requires additional shaping circuits.
Last Answer : . It requires additional shaping circuits.
Description : How do you calculate the wavelength of a sine wave?
Last Answer : Wavelength = rate of travel × period.
Description : What is the instantaneous amplitude of a sine wave?
Last Answer : The value at any given point on the sine wave.
Description : If a transformer primary is energised from a square wave voltage source, its output voltage will be (A) A square wave. (B) A sine wave. (C) A triangular wave. (D) A pulse wave.
Last Answer : (A) A square wave.
Description : Draw block diagram of AF sine and square wave generator and explain its working
Last Answer : The AF signal generator, which generates either sine wave or square wave in the range of audio frequencies based on the requirement is called AF Sine and Square wave generator. Its block diagram is shown ... can be used to produce either AF sine wave or AF square wave based on the requirement.
Description : Sketch the block diagram of function generator & describe the circuit of sine wave generation.
Last Answer : Block Diagram Explanation‐ For generation of sinewave , out of the three knobs‐ sine, square and triangular , the sine knob is pressed, output is adjusted for required frequency and amplitude using frequency and amplitude
Description : Instantaneous value of a sine wave voltage
Last Answer : Instantaneous value of a sine wave voltage
Description : Draw a labeled block diagram of sine wave generator and state function of each block.
Last Answer : Function Generator: This instrument can deliver sine, triangular & square waves with frequency range of 0.01 Hz to 100 kHz. The frequency control network is governed by a frequency ... voltage reaches a predetermined level on the negative slope of the integrator's output voltage.
Description : The transient current in lossless L-C circuit when excited from an AC source is, sine wave (a) Critically damped (b) Underdamped (c) Overdamped (d) Undamped
Last Answer : The transient current in lossless L-C circuit when excited from an AC source is, sine wave Undamped