For a half wave or full wave rectifier the Peak Inverse Voltage of the rectifier is always

Electronics and Communication Engineering (ECE) : Electronic Devices and Circuits - Quiz(MCQ)

Equal to the input voltage

Smaller than the input voltage

Greater than the input voltage

Greater than the input voltage for full wave rectifier and smaller for the half wave rectifier

Correct Answer : Option (B) : Smaller than the input voltage

Explanation : The peak input voltage is smaller than the input voltage due to the presence of diode(s). A single diode reduces the output voltage by approximately 0.7V.

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The kinetic energy of photoelectrons emitted by a photo sensitive surface depends on

angle of incidence of radiation

surface conditions of the surface

intensity of the incident radiation

wavelength of the incident radiation

Correct Answer : wavelength of the incident radiation

For radiating ultraviolet rays, LEDs use

gallium arsenide

zinc sulphide

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None of the above

Correct Answer : zinc sulphide

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emitter base : reverse, collector base : reverse

emitter base : reverse, collector base : forward

emitter base : forward, collector base : forward

emitter base : forward, collector base : reverse

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