Question # 1

Which component of the transistor has greater contrition of impurity.

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Base

Emitter

Collector

Emitter and collector

Photodiode is used for:

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Detection of current

Detection of heat

Detection of light

Both a & b

Which factor does not affect the conductivity of PN-Junction diode.

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Doping

Temperature

Voltage

Pressure

Truth table of logic function.

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Summarize its output values only

Tabulates all its input conditions only

Display all its input and output possibility

Is not base on logic algebra

the number of terminals in a semiconductor diode are

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2

3

4

5

Rectification is the process of converting.

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D.C. into A.C.

A.C. in to D.C.

Low signal to high

High signal to low

Photo diode is used for detection of.

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Heat

Magnet

Current

Light

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

In case of reverse biasing, current is flown due to:

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Minority charge carriers

Majority charge carriers

Electrons

Protons

The symbol of p-n-p transistor is

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Which diode works at reverse biasing.

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LED

Photo voltaic cell

Photo diode

Silicon diode

LDR becomes necessary when op amp is used as a

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Night switch

Inverter

Comparator

Rectifier

_______ is the building block of every electronic circuit.

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Semi conductor diode

Resistor

Capacitor

Amplifier

The p-n junction in which p side is connected to+ive and n-side is -ve the junction is said to be:

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Neutral

Forward biased

Reversed biased

None of above

The mathematical symbol for NOR operation is

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X = A . B

X = A + D

The sensor of light is.

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Transistor

LED

Diode

Light dependent resistance

A PN junction can not be sued a.

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Rectifier

Amplifier

Detector

LED

A transistor has:

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Two regions

Three regions

Single regions

Four regions

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

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