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

Doping is made comparatively larger in

Question # 2

For rectification we use.

Question # 3

Which is not fundamental logic gate.

Question # 4

The use of LDR is in the circuit of.

Question # 5

Which component of the transistor has greater contrition of impurity.

Question # 6

Photo diode is used for detection of.

Question # 7

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

Question # 8

Base of transistor is of order:

Question # 9

When transistor are used in digital circuits they usually operate in the :

Question # 10

A photo diode can turn its current ON and OFF in

Question # 11

The P.D develop in case of silicon is:

Question # 12

Transistor was invented by:

Question # 13

LDR becomes necessary when op amp is used as a

Question # 14

The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.

Question # 15

A transistor has:

Question # 16

The output from a full wave rectifier is

Question # 17

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

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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 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
2 The device which are required to convert various physical quantities into electric voltage are called.
A. Filters
B. Rectifiers
C. Amplifiers
D. Sensors
3 The P.D develop in case of silicon is:
A. 0.7V
B. 0.3V
C. 0.5V
D. 0.9V
4 Conversion of A.C into D.C is called:
A. Compton effect
B. Rectification
C. Amplification 
D. Pair production
5 Photo diode is used for detection of.
A. Heat
B. Magnet
C. Current
D. Light
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 Transistor was discovered by
A. Young
B. Curie
C. John Bardeen
D. Shale's
8 Output resistance of an op amp is
A. High
B. Low
C. Zero
D. Equal to input resistance
9 The ratio Beta in transistor is called.
A. Voltage gain
B. Emitter gain
C. Current gain
D. Nuclear gain
10 In a transistor, collector current is controlled by:
A. Collector voltage
B. Base current
C. Collector resistance
D. All of the above

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