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 input resistance of an op amplifier is.

Question # 2

Which one has greater cone of impurity among all:

Question # 3

Doping is made comparatively larger in

Question # 4

LDR becomes necessary when op amp is used as a

Question # 5

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

Question # 6

The use of LDR is in the circuit of.

Question # 7

Which diode works at reverse biasing.

Question # 8

Base of transistor is of order:

Question # 9

NAND gate represented by:

Question # 10

Conversion of A.C into D.C is called:

Question # 11

In case of op-amp as an inverting amplifier, V+ - V- = 0, this is because

Question # 12

Logic gate can control some physical parameters like.

Question # 13

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

Question # 14

Which device is used as a rectifier?

Question # 15

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

Question # 16

The open loop gain of the amplifier is order of.

Question # 17

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

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The impurity in the germinium is usually in the ratio of
A. 1:106
B. 1:104
C. 1:108
D. 1:1010
2 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
3 Which device is used as a rectifier?
A. Capacitor
B. Transistor
C. Diode
D. Transformer
4 The symbol of p-n-p transistor is
5 Improper bisting of a transistor circiut produces:
A. Heavy loading of emitter current
B. Distortion in the output output signal
C. Excessive heat at collector terminal
D. Faculty location of load line
6 Photo diode detects.
A. Visible light
B. Radio waves
C. X rays
D. All of them
7 A transistor has parts:
A. 2
B. 3
C. 4
D. 5
8 The gate, which changes the logic level to its opposite level is called
A. NOR gate
B. AND gate
C. OR gate
D. NOT gate
9 The average gap for Germanium at 0K is
A. 1.12 ev
B. 0.02 ev
C. 6.72 ev
D. 7.2 ev
10 During negative half cycle of A.c then p-n junction offers.
A. High resistance
B. Low resistance
C. No resistance
D. All of these

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