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

Photo diode detects.

Question # 2

Which one has greater cone of impurity among all:

Question # 3

The use of LDR is in the circuit of.

Question # 4

A transistor has parts:

Question # 5

NAND gate represented by:

Question # 6

The central region of a transistor is called.

Question # 7

For normal use:

Question # 8

The potential difference across the depletion region of germanium is.

Question # 9

One use of a single p-n junction semiconductor in an electrical circuit is a

Question # 10

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

Question # 11

In full wave rectification number of diodes required are equal to.

Question # 12

In a transistor, collector current is controlled by:

Question # 13

The potential barrier for silicon is.

Question # 14

Which is not fundamental logic gate.

Question # 15

Which component of the transistor has greater contrition of impurity.

Question # 16

Doping is made comparatively larger in

Question # 17

The sensor of light is.

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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 impurity in the germinium is usually in the ratio of
A. 1:106
B. 1:104
C. 1:108
D. 1:1010
2 Reverse current flows due to
A. Majority charge carriers
B. Minority charge carriers
C. Electrons
D. Holes
3 Most of the electrons in the base of an NPN transistor flow:
A. Out of the base lead
B. Into the collector
C. Into the emit
D. Into the base supply
4 Which is not fundamental logic gate.
A. NOT
B. AND
C. OR
D. NAND
5 When a PN-Junction is reverse biased the depletion region is.
A. Widened
B. Narrowed
C. Normal
D. None of these
6 Conversation of only one half of A.C. into D.C. is called.
A. Half wave amplification
B. Wave amplification
C. Half wave electrification
D. Half wave rectification
7 Conversion of A.C into D.C is called:
A. Compton effect
B. Rectification
C. Amplification 
D. Pair production
8 A transistor has parts:
A. 2
B. 3
C. 4
D. 5
9 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
10 _______ is the building block of every electronic circuit.
A. Semi conductor diode
B. Resistor
C. Capacitor
D. Amplifier

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