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

00:00
Question # 1

_______ is the building block of every electronic circuit.

Question # 2

A transistor has:

Question # 3

Conversion of A.C into D.C is called:

Question # 4

Photo diode is used for detection of.

Question # 5

Logic gate can control some physical parameters like.

Question # 6

The input resistance of an op amplifier is.

Question # 7

Doping is made comparatively larger in

Question # 8

The gate, which changes the logic level to its opposite level is called

Question # 9

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

Question # 10

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

Question # 11

The device which are required to convert various physical quantities into electric voltage are called.

Question # 12

Which is not fundamental logic gate.

Question # 13

In case of reverse biasing, current is flown due to:

Question # 14

Which component of the transistor has greater contrition of impurity.

Question # 15

The potential difference across the depletion region of germanium is.

Question # 16

The chargeless region after formation of Pn junction is called:

Question # 17

The colour of light emitted by a LED depends on.

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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 open loop gain of the amplifier is order of.
A. 106
B. 105
C. 107
D. 103
2 A diode characteristic curve is a plot between
A. Current and time
B. Voltage and time
C. Voltage and current
D. Forward voltage and reverse voltage
3 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
4 The P.D develop in case of germanium is:
A. 0.3
B. 0.7
C. 0.5
D. 0.9
5 A PN junction can not be sued a.
A. Rectifier
B. Amplifier
C. Detector
D. LED
6 The ratio Beta in transistor is called.
A. Voltage gain
B. Emitter gain
C. Current gain
D. Nuclear gain
7 The central region of a transistor is called.
A. Emitter
B. Collector
C. Base
D. Neutral
8 Photo diode is used for detection of.
A. Heat
B. Magnet
C. Current
D. Light
9 Which is not fundamental logic gate.
A. NOT
B. AND
C. OR
D. NAND
10 In case of op-amp as an inverting amplifier, V+ - V- = 0, this is because
A. Open gain loop is very low
B. Closed loop gain is very high
C. Open loop gain is very high
D. Both (a) and (a)

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