Recent questions and answers in Electronics Engineering

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Type of rectifier??

asked Jul 24 by anonymous | 233 views

1 answer

The system of equations x + y+ z = 6, 2 x + y +z = 7, x + 2 y +z=8 has

answered Jul 19 by MANSAD V A | 34 views

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11001, 1001 and 111001 correspond to the 2’s complement representation of which one of the following...

answered Jul 7 by Ramyasetty | 266 views

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What device is similar to an RTD but has a negative temperature coefficient?

answered Jun 4 by Nokuthula | 280 views

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For biomedical applications the mostly used amplifier is ...

answered Jan 15 by vvenky819 | 316 views

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What type of instrument is used to measure dc voltage of the order 5 volts?

answered Nov 15, 2018 by Abhishekpaipuri | 76 views

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Name the process that causes potential difference across a solenoid due to the movement of a nearby magnet

asked Oct 2, 2018 by anonymous | 42 views

1 answer

How do you charge a capacitor with a battery?

answered Aug 16, 2018 by gabriel orina | 53 views

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How can you identify a zener diode?

answered Aug 16, 2018 by gabriel orina | 71 views

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why bjt is called current controlled device?

answered Aug 15, 2018 by gabriel orina | 67 views

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A waveguide termination having VSWR of 1.1 is used to dissipate 100 watts of power. The reflected power

answered Jun 18, 2018 by anonymous1 | 53 views

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TWT is basically a(n)

answered Jun 18, 2018 by anonymous1 | 40 views

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Which of the following device is used for coupling microwave energy?

answered Jun 18, 2018 by anonymous1 | 62 views

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Which of the following is a negative-resistance microwave device for oscillator applications?

answered Jun 18, 2018 by anonymous1 | 47 views

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Calculate the size of memory address space for a 16 bit data and 20 bit address bus.

answered Jun 18, 2018 by anonymous1 | 42 views

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The average time required to reach a storage location in the memory to read or retrieve the contents of

answered Jun 18, 2018 by anonymous1 | 88 views

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The command line interpreter that enables the users to interact with operating system is called the

answered Jun 18, 2018 by anonymous1 | 29 views

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What is the size of SP register in 8085 microprocessor?

answered Jun 18, 2018 by anonymous1 | 23 views

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The total power of an AM transmitter having a carrier power of 50 W and the percentage of modulation at

answered Jun 18, 2018 by anonymous1 | 31 views

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Which waves are demodulated by Costas loop?

answered Jun 18, 2018 by anonymous1 | 22 views

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What is the channel capacity of a noisy channel with conditional probability of error p = 1/2?

answered Jun 18, 2018 by anonymous1 | 38 views

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An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak

answered Jun 18, 2018 by anonymous1 | 36 views

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If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be

answered Jun 18, 2018 by anonymous1 | 45 views

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What is the frequency range of VHF electromagnetic waves?

answered Jun 18, 2018 by anonymous1 | 349 views

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As per Shannon’s channel capacity theorem, if samples are transmitted in ‘T’ seconds over a noisy channel

answered Jun 18, 2018 by anonymous1 | 43 views

1 answer

The second harmonic distortion is defined as the

answered Jun 18, 2018 by anonymous1 | 38 views

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The sampling rate to avoid aliasing for the signal m(t) = 100 cos 200ωt will be

asked Jun 18, 2018 by anonymous1 | 50 views

1 answer

An energy signal has G(f) = 20. Its energy density spectrum is

answered Jun 18, 2018 by anonymous1 | 28 views

1 answer

What does double integration of a unit step function lead to?

answered Jun 18, 2018 by anonymous1 | 53 views

1 answer

What is the Fourier transform of a Gaussian time pulse?

answered Jun 18, 2018 by anonymous1 | 50 views

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A differential amplifier has a differential gain of 28000 and CMRR is 60 dB. What will be the value of common

answered Jun 18, 2018 by anonymous1 | 65 views

1 answer

An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to

answered Jun 18, 2018 by anonymous1 | 43 views

1 answer

What is the efficiency of Class-B amplifier?

answered Jun 18, 2018 by anonymous1 | 21 views

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What is a Schmitt trigger?

answered Jun 18, 2018 by anonymous1 | 13 views

1 answer

Which of the following circuits converts any arbitrary waveform into square waveform?

answered Jun 18, 2018 by anonymous1 | 21 views

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Which one of the following is another name for common-collector amplifier?

answered Jun 18, 2018 by anonymous1 | 24 views

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Which of the following transducers can be used for non-contact temperature measurement?

answered Jun 17, 2018 by anonymous1 | 26 views

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Which of the following materials is used in the construction of thermistors?

answered Jun 17, 2018 by anonymous1 | 19 views

1 answer

In thermo-couple instruments, in which of the following is an emf caused if the junction of two wires of

answered Jun 17, 2018 by anonymous1 | 16 views

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How can we protect circuit from reverse voltage polarity?

answered Jun 15, 2018 by anonymous1 | 11 views

1 answer

In a microwave magic-T, E plane and H plane are

answered Jun 15, 2018 by anonymous1 | 12 views

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Slotted line with tunable probe is not used to measure

answered Jun 15, 2018 by anonymous1 | 18 views

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When electromagnetic waves are propagated in a waveguide

answered Jun 15, 2018 by anonymous1 | 12 views

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The following quantity is not required in the calculation of Q of a cavity resonator

answered Jun 15, 2018 by anonymous1 | 11 views

1 answer

The following is not an application of varactor diode:

answered Jun 15, 2018 by anonymous1 | 27 views

1 answer

Klystron operation is based on the principle of

answered Jun 15, 2018 by anonymous1 | 16 views

1 answer

An elliptically (arbitrarily polarized wave c an be broken up into

answered Jun 15, 2018 by anonymous1 | 11 views

1 answer

For an earth station transmitter, with an antenna output power of 40dBW 10,000W, a back-off loss of 3dB, a

answered Jun 15, 2018 by anonymous1 | 13 views

1 answer

In communication systems, noise due to quantization error is

answered Jun 15, 2018 by anonymous1 | 13 views

1 answer

The threshold effect in demodulators is a The rapid fall of output SNR when the input SNR falls below

answered Jun 15, 2018 by anonymous1 | 13 views