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

The P.D develop in case of silicon is:

Question # 2

The impurity in the germinium is usually in the ratio of

Question # 3

A light emitting diode emits light only when

Question # 4

The symbol of p-n-p transistor is

Question # 5

Improper bisting of a transistor circiut produces:

Question # 6

Truth table of logic function.

Question # 7

Photo diode is used for detection of.

Question # 8

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

Question # 9

Doping is made comparatively larger in

Question # 10

Transistor was discovered by

Question # 11

OR gate is represented by:

Question # 12

A two inputs NAND gat with inputs a and b has an output '0' if.

Question # 13

A transistor has:

Question # 14

For normal use:

Question # 15

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

Question # 16

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

Question # 17

_______ is the building block of every electronic circuit.

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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 input resistance of an op amplifier is.
A. Low
B. High
C. Zero
D. Equal to output resistance
2 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)
3 Minimum number of semi conductor diodes required for full wave rectification are.
A. 1
B. 2
C. 3
D. 4
4 Photo diode is used for detection of.
A. Heat
B. Magnet
C. Current
D. Light
5 Which component of the transistor has greater contrition of impurity.
A. Base
B. Emitter
C. Collector
D. Emitter and collector
6 Output resistance of an op amp is
A. High
B. Low
C. Zero
D. Equal to input resistance
7 In case of reverse biasing, current is flown due to:
A. Minority charge carriers
B. Majority charge carriers
C. Electrons
D. Protons
8 Pulsating output of full wave rectifier can be made smooth by using circuit called.
A. Filter
B. Amplifier
C. Resistor
D. Transistor
9 When transistor are used in digital circuits they usually operate in the :
A. Active region
B. Break down region
C. Saturation & cutoff regions
D. Linear region
10 In photovoltaic cell, current is directly proportional to.
A. Wavelength of light
B. Intensity of light
C. Energy
D. Frequency of light

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