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

00:00
Question # 1

Photo diode detects.

Question # 2

Minimum number of semi conductor diodes required for full wave rectification are.

Question # 3

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

Question # 4

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

Question # 5

The mathematical symbol for NOR operation is

Question # 6

The reverse saturation current in a PN junction diode is only due to:

Question # 7

In photovoltaic cell, current is directly proportional to.

Question # 8

the number of terminals in a semiconductor diode are

Question # 9

Transistors are made from

Question # 10

The P.D develop in case of silicon is:

Question # 11

Rectification is the process of converting.

Question # 12

Light emitting diodes are made from semiconductors.

Question # 13

Transistor was invented by:

Question # 14

Which component of the transistor has greater contrition of impurity.

Question # 15

The output voltage of a rectifier is.

Question # 16

The sensor of light is.

Question # 17

Which is not fundamental logic gate.

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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 A device which converts low voltage or current to high voltage or current is called.
A. Transformer
B. AC generator
C. Amplifier
D. Rectifier
2 One use of a single p-n junction semiconductor in an electrical circuit is a
A. Rectifier
B. Transistor
C. Battery
D. Diode
3 The output voltage of a rectifier is.
A. Smooth
B. Pulsating
C. Alternating
D. Per featly direct
4 Output resistance of an op amp is
A. High
B. Low
C. Zero
D. Equal to input resistance
5 Which device is used as a rectifier?
A. Capacitor
B. Transistor
C. Diode
D. Transformer
6 Which diode works at reverse biasing.
A. LED
B. Photo voltaic cell
C. Photo diode
D. Silicon diode
7 Transistor was discovered by
A. Young
B. Curie
C. John Bardeen
D. Shale's
8 Transistors are made from
A. Plastics
B. Metals
C. Insulator
D. Doped semi conductors
9 The open loop gain of the amplifier is order of.
A. 106
B. 105
C. 107
D. 103
10 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

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