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

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

Question # 2

Which is not fundamental logic gate.

Question # 3

A two inputs NAND gat with inputs a and b has an output '0' if.

Question # 4

The semi conductor diode has the property of

Question # 5

OR gate is represented by:

Question # 6

The output of two input is zero only when its.

Question # 7

In a transistor, collector current is controlled by:

Question # 8

Doping is made comparatively larger in

Question # 9

The colour of light emitted by a LED depends on.

Question # 10

A diode characteristic curve is a plot between

Question # 11

The P.D develop in case of germanium is:

Question # 12

Base of transistor is of order:

Question # 13

The term invertor is used for.

Question # 14

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

Question # 15

The potential difference across depletion region in case of Si is

Question # 16

The potential barrier for silicon is.

Question # 17

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

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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
2 The impurity in the germinium is usually in the ratio of
A. 1:106
B. 1:104
C. 1:108
D. 1:1010
3 The chargeless region after formation of Pn junction is called:
A. Free region
B. Depletion region
C. Field region
D. U.V region
4 Transistor was invented by:
A. Bardeen
B. Micheal faraday
C. Lenz
D. Newton
5 Which is not fundamental logic gate.
A. NOT
B. AND
C. OR
D. NAND
6 Base of transistor is of order:
A. 10-11m
B. 106m
C. 10-8m
D. 10-6m
7 Doping is made comparatively larger in
A. Emitter
B. Base
C. Collector
D. P -type semi conductor
8 In full wave rectification number of diodes required are equal to.
A. 2
B. 3
C. 4
D. 5
9 An expression for gain of an inverting amplifier is
C. (R1R2)
D. None of these
10 Pulsating output of full wave rectifier can be made smooth by using circuit called.
A. Filter
B. Amplifier
C. Resistor
D. Transistor

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