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

The potential difference across the depletion region of germanium is.

Question # 2

The P.D develop in case of germanium is:

Question # 3

An expression for gain of an inverting amplifier is

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The central region of a transistor is called.

Question # 8

The open loop gain of the amplifier is order of.

Question # 9

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

Question # 10

The output from a full wave rectifier is

Question # 11

For normal use:

Question # 12

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

Question # 13

OR gate is represented by:

Question # 14

Base of transistor is of order:

Question # 15

Transistor was invented by:

Question # 16

The semi conductor diode has the property of

Question # 17

Which device is used as a rectifier?

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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 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
2 Which is not fundamental logic gate.
A. NOT
B. AND
C. OR
D. NAND
3 An expression for gain of an inverting amplifier is
C. (R1R2)
D. None of these
4 For automatic Switching of streetlight, the op amplifier is used as.
A. Inductor
B. Converter
C. Comparator
D. Thermistor
5 In full wave rectification number of diodes required are equal to.
A. 2
B. 3
C. 4
D. 5
6 The average gap for Germanium at 0K is
A. 1.12 ev
B. 0.02 ev
C. 6.72 ev
D. 7.2 ev
7 The symbol of p-n-p transistor is
8 Rectification is the process of converting.
A. D.C. into A.C.
B. A.C. in to D.C.
C. Low signal to high
D. High signal to low
9 Transistor was discovered by
A. Young
B. Curie
C. John Bardeen
D. Shale's
10 In case of reverse biasing, current is flown due to:
A. Minority charge carriers
B. Majority charge carriers
C. Electrons
D. Protons

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