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

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

Question # 2

A diode characteristics curve is a plot between

Question # 3

Which one has greater cone of impurity among all:

Question # 4

The device which are required to convert various physical quantities into electric voltage are called.

Question # 5

Transistor was discovered by

Question # 6

For rectification we use.

Question # 7

Transistors are made from

Question # 8

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

Question # 9

An expression for gain of an inverting amplifier is

Question # 10

Most of the electrons in the base of an NPN transistor flow:

Question # 11

Photo diode is used for detection of.

Question # 12

The output of two input is zero only when its.

Question # 13

A transistor has:

Question # 14

Photodiode is used for:

Question # 15

Automatic function of street light can be done by the use of.

Question # 16

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

Question # 17

In photovoltaic cell, current is directly proportional to.

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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 Pulsating output of full wave rectifier can be made smooth by using circuit called.
A. Filter
B. Amplifier
C. Resistor
D. Transistor
2 In full wave rectification number of diodes required are equal to.
A. 2
B. 3
C. 4
D. 5
3 Greater concentration of impurity is added in.
A. Base
B. Emitter
C. Collector
D. LED
4 _______ is the building block of every electronic circuit.
A. Semi conductor diode
B. Resistor
C. Capacitor
D. Amplifier
5 A transistor has:
A. Two regions
B. Three regions
C. Single regions
D. Four regions
6 The P.D develop in case of silicon is:
A. 0.7V
B. 0.3V
C. 0.5V
D. 0.9V
7 The reverse saturation current in a PN junction diode is only due to:
A. Majority carriers
B. Minoritycarriers
C. Acceptor ions
D. Donor ions
8 NAND gate represented by:
A. X = A. B
B. X = A+B
C. X= A.B
D. X=|A+B|
9 One use of a single p-n junction semiconductor in an electrical circuit is a
A. Rectifier
B. Transistor
C. Battery
D. Diode
10 The mathematical symbol for NOR operation is
B. X = A . B
C. X = A + D

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