Question # 1

Photodiode is used for:

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Detection of current

Detection of heat

Detection of light

Both a & b

During negative half cycle of A.c then p-n junction offers.

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High resistance

Low resistance

No resistance

All of these

The device which is used as amplifier and works with the negative feedback is.

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Operational amplifier

P-n-p transistor

n-p-n transistor

Transistor

The circuit of full wave rectification consist of

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Three diodes

Four diodes

Two diodes

One diode

A.C. can be converted into D.C. by

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An oscillator

Detector

An amplifier

Rectifier

Which diode works at reverse biasing.

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LED

Photo voltaic cell

Photo diode

Silicon diode

The term invertor is used for.

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NOR gate

XNOR gate

NAND gate

NOT gate

The potential difference across depletion region in case of Si is

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0.6 volt

0.9 volt

0.7 volt

0.2 volt

Improper bisting of a transistor circiut produces:

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Heavy loading of emitter current

Distortion in the output output signal

Excessive heat at collector terminal

Faculty location of load line

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Physics FSC Part 2 Chapter 18 Online MCQ's Test MCQs With Answers

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