2nd Year Physics Chapter 18 Online MCQ Test for 12th Class Physics Chapter 18 (Electronics)

ICS Part 2 Physics
Chapter 18 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 18 Online MCQ's Test"

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Physics ICS Part 2 Chapter 18 Online MCQ's Test

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Question # 1

The colour of light emitted by a LED depends on.

Question # 2

Depletion region carries.

Question # 3

The input resistance of an op amplifier is.

Question # 4

An expression for gain of an inverting amplifier is

Question # 5

For rectification we use.

Question # 6

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

Question # 7

OR gate is represented by:

Question # 8

The output voltage of a rectifier is.

Question # 9

A diode characteristic curve is a plot between

Question # 10

One use of a single p-n junction semiconductor in an electrical circuit is a

Question # 11

The term invertor is used for.

Question # 12

Base of transistor is of order:

Question # 13

Photodiode is used for:

Question # 14

Transistor was invented by:

Question # 15

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

Question # 16

The average gap for Germanium at 0K is

Question # 17

Transistors are made from

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ICS 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 is used for detection of.
A. Heat
B. Magnet
C. Current
D. Light
2 The use of LDR is in the circuit of.
A. Logic gate
B. Rectifier
C. Oscillator
D. High Switch
3 LDR becomes necessary when op amp is used as a
A. Night switch
B. Inverter
C. Comparator
D. Rectifier
4 The mathematical symbol for NOR operation is
B. X = A . B
C. X = A + D
5 Rectification is the process of converting.
A. D.C. into A.C.
B. A.C. in to D.C.
C. Low signal to high
D. High signal to low
6 Pulsating output of full wave rectifier can be made smooth by using circuit called.
A. Filter
B. Amplifier
C. Resistor
D. Transistor
7 The open loop gain of the amplifier is order of.
A. 106
B. 105
C. 107
D. 103
8 In full wave rectification number of diodes required are equal to.
A. 2
B. 3
C. 4
D. 5
9 Doping is made comparatively larger in
A. Emitter
B. Base
C. Collector
D. P -type semi conductor
10 The sensor of light is.
A. Transistor
B. LED
C. Diode
D. Light dependent resistance

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