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

OR gate is represented by:

Question # 2

The symbol of p-n-p transistor is

Question # 3

When a PN-Junction is reverse biased the depletion region is.

Question # 4

For normal use:

Question # 5

The gain of transistor amplifier depends upon

Question # 6

The ratio of potential barriers of Ge to Si at room temperatrue is.

Question # 7

Improper bisting of a transistor circiut produces:

Question # 8

NAND gate represented by:

Question # 9

During negative half cycle of A.c then p-n junction offers.

Question # 10

A transistor has:

Question # 11

A photo diode can turn its current ON and OFF in

Question # 12

The semi conductor diode has the property of

Question # 13

The P.D develop in case of silicon is:

Question # 14

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

Question # 15

Output resistance of an op amp is

Question # 16

Which diode works at reverse biasing.

Question # 17

_______ is the building block of every electronic circuit.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 One use of a single p-n junction semiconductor in an electrical circuit is a
A. Rectifier
B. Transistor
C. Battery
D. Diode
2 In a transistor, collector current is controlled by:
A. Collector voltage
B. Base current
C. Collector resistance
D. All of the above
3 The ratio Beta in transistor is called.
A. Voltage gain
B. Emitter gain
C. Current gain
D. Nuclear gain
4 Doping is made comparatively larger in
A. Emitter
B. Base
C. Collector
D. P -type semi conductor
5 The impurity in the germinium is usually in the ratio of
A. 1:106
B. 1:104
C. 1:108
D. 1:1010
6 The output of two input is zero only when its.
A. Both inputs are zero
B. Either input is zero
C. Both inputs are one
D. Either input is one
7 The potential difference across depletion region in case of Si is
A. 0.6 volt
B. 0.9 volt
C. 0.7 volt
D. 0.2 volt
8 The open loop gain of the amplifier is order of.
A. 106
B. 105
C. 107
D. 103
9 The P.D develop in case of germanium is:
A. 0.3
B. 0.7
C. 0.5
D. 0.9
10 A light emitting diode emits light only when
A. Reverse biased
B. Forward biased
C. Unbiased
D. None of these

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