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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Physics ICS Part 2 Chapter 18 Online MCQ's Test

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Question # 1

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

Question # 2

Conversation of only one half of A.C. into D.C. is called.

Question # 3

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

Question # 4

The term invertor is used for.

Question # 5

In a certain circuit, IB = 40 µA, IC = 20 mA

Question # 6

Which one has greater cone of impurity among all:

Question # 7

Output resistance of an op amp is

Question # 8

The ratio Beta in transistor is called.

Question # 9

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

Question # 10

the number of terminals in a semiconductor diode are

Question # 11

The open loop gain of the amplifier is order of.

Question # 12

Base of transistor is of order:

Question # 13

A transistor has:

Question # 14

The input resistance of an op amplifier is.

Question # 15

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

Question # 16

Doping is made comparatively larger in

Question # 17

The device which is used as amplifier and works with the negative feedback is.

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18th Chapter

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 The device which are required to convert various physical quantities into electric voltage are called.
A. Filters
B. Rectifiers
C. Amplifiers
D. Sensors
2 The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.
A. Ohms
B. Kilo Ohms
C. Mega Ohms
D. Thounds Ohms
3 Truth table of logic function.
A. Summarize its output values only
B. Tabulates all its input conditions only
C. Display all its input and output possibility
D. Is not base on logic algebra
4 The circuit of full wave rectification consist of
A. Three diodes
B. Four diodes
C. Two diodes
D. One diode
5 Conversation of only one half of A.C. into D.C. is called.
A. Half wave amplification
B. Wave amplification
C. Half wave electrification
D. Half wave rectification
6 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
7 A light emitting diode emits light only when
A. Reverse biased
B. Forward biased
C. Unbiased
D. None of these
8 Transistor was discovered by
A. Young
B. Curie
C. John Bardeen
D. Shale's
9 The impurity in the germinium is usually in the ratio of
A. 1:106
B. 1:104
C. 1:108
D. 1:1010
10 The p-n junction in which p side is connected to+ive and n-side is -ve the junction is said to be:
A. Neutral
B. Forward biased
C. Reversed biased
D. None of above

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