Question # 1

In a transistor, collector current is controlled by:

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Collector voltage

Base current

Collector resistance

All of the above

Minimum number of semi conductor diodes required for full wave rectification are.

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1

2

3

4

The output of two input is zero only when its.

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Both inputs are zero

Either input is zero

Both inputs are one

Either input is one

The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.

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Ohms

Kilo Ohms

Mega Ohms

Thounds Ohms

The P.D develop in case of silicon is:

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0.7V

0.3V

0.5V

0.9V

Which one has greater cone of impurity among all:

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Emitter

Base

Collector

All are pure

A device which converts low voltage or current to high voltage or current is called.

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Transformer

AC generator

Amplifier

Rectifier

_______ is the building block of every electronic circuit.

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Semi conductor diode

Resistor

Capacitor

Amplifier

Light emitting diodes are made from semiconductors.

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Silicon

Germanium

Carbon

Gallium arsenide

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Physics Fsc Part 2 Chapter 7 Online Test MCQs With Answers

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