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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ICS Part 2 Physics Chapter Wise 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

Base of transistor is of order:

Question # 2

The term invertor is used for.

Question # 3

X=A+B is the mathematical notation for.

Question # 4

Pulsating output of full wave rectifier can be made smooth by using circuit called.

Question # 5

_______ is the building block of every electronic circuit.

Question # 6

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

Question # 7

the number of terminals in a semiconductor diode are

Question # 8

The gain of transistor amplifier depends upon

Question # 9

Photo diode detects.

Question # 10

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

Question # 11

The P.D develop in case of germanium is:

Question # 12

The P.D develop in case of silicon is:

Question # 13

Improper bisting of a transistor circiut produces:

Question # 14

The central region of a transistor is called.

Question # 15

A photo diode can turn its current ON and OFF in

Question # 16

The potential barrier for silicon is.

Question # 17

The input resistance of an op amplifier is.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The use of LDR is in the circuit of.
A. Logic gate
B. Rectifier
C. Oscillator
D. High Switch
2 A transistor has parts:
A. 2
B. 3
C. 4
D. 5
3 OR gate is represented by:
A. X = A+B
B. X=A.B
C. X=A+B
D. X=A.B
4 For rectification we use.
A. Transformer
B. Diode
C. Choke
D. Generator
5 Base of transistor is of order:
A. 10-11m
B. 106m
C. 10-8m
D. 10-6m
6 The output from a full wave rectifier is
A. An ac voltage
B. A dc voltage
C. Zero
D. A pulsating unidirectional voltage
7 The open loop gain of the amplifier is order of.
A. 106
B. 105
C. 107
D. 103
8 The mathematical symbol for NOR operation is
B. X = A . B
C. X = A + D
9 Automatic function of street light can be done by the use of.
A. Inductor
B. Rectifier
C. Comparator
D. emf
10 The colour of light emitted by a LED depends on.
A. It forward biased
B. Its reverse biased
C. Unbiased
D. None of these

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