Second Year Physics Chapter 18 Online MCQ Test for 2nd Year Physics Chapter 18 Electronics Preparation

FSC Part 2 Physics
Chapter 18 Test

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Physics FSC Part 2 Chapter 18 Online MCQ's Test

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Question # 1

The term invertor is used for.

Question # 2

The gate, which changes the logic level to its opposite level is called

Question # 3

A diode characteristics curve is a plot between

Question # 4

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

Question # 5

For normal transistor the emitter current can be given by

Question # 6

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

Question # 7

The output of two input is zero only when its.

Question # 8

Which is not fundamental logic gate.

Question # 9

A photo diode can turn its current ON and OFF in

Question # 10

Truth table of logic function.

Question # 11

The mathematical symbol for NOR operation is

Question # 12

The symbol of p-n-p transistor is

Question # 13

Transistors are made from

Question # 14

Greater concentration of impurity is added in.

Question # 15

The gain of transistor amplifier depends upon

Question # 16

Output resistance of an op amp is

Question # 17

Transistor was discovered by

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FSC Part 2 Physics Chapter 18 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Photo diode detects.
A. Visible light
B. Radio waves
C. X rays
D. All of them
2 Transistors are made from
A. Plastics
B. Metals
C. Insulator
D. Doped semi conductors
3 When transistor are used in digital circuits they usually operate in the :
A. Active region
B. Break down region
C. Saturation & cutoff regions
D. Linear region
4 The potential barrier for silicon is.
A. 0.7 V
B. 0.5 V
C. 0.3 V
D. 0.9 V
5 Which one has greater cone of impurity among all:
A. Emitter
B. Base
C. Collector
D. All are pure
6 Base of transistor is of order:
A. 10-11m
B. 106m
C. 10-8m
D. 10-6m
7 A.C. can be converted into D.C. by
A. An oscillator
B. Detector
C. An amplifier
D. Rectifier
8 An expression for gain of an inverting amplifier is
C. (R1R2)
D. None of these
9 Reverse current flows due to
A. Majority charge carriers
B. Minority charge carriers
C. Electrons
D. Holes
10 One use of a single p-n junction semiconductor in an electrical circuit is a
A. Rectifier
B. Transistor
C. Battery
D. Diode

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