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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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 18 Online MCQ's Test"

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Physics ICS Part 2 Chapter 18 Online MCQ's Test

00:00
Question # 1

A light emitting diode emits light only when

Question # 2

Base of transistor is of order:

Question # 3

_______ is the building block of every electronic circuit.

Question # 4

For rectification we use.

Question # 5

Photo diode is used for detection of.

Question # 6

Transistors are made from

Question # 7

When a PN-Junction is reverse biased the depletion region is.

Question # 8

Which is not fundamental logic gate.

Question # 9

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

Question # 10

The potential difference across depletion region in case of Si is

Question # 11

For normal use:

Question # 12

The circuit of full wave rectification consist of

Question # 13

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

Question # 14

The mathematical symbol for NOR operation is

Question # 15

Conversation of only one half of A.C. into D.C. is called.

Question # 16

Improper bisting of a transistor circiut produces:

Question # 17

Depletion region carries.

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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 P.D develop in case of silicon is:
A. 0.7V
B. 0.3V
C. 0.5V
D. 0.9V
2 During negative half cycle of A.c then p-n junction offers.
A. High resistance
B. Low resistance
C. No resistance
D. All of these
3 Transistor was invented by:
A. Bardeen
B. Micheal faraday
C. Lenz
D. Newton
4 A diode characteristics curve is a plot between
A. Current and resistance
B. Voltage and time
C. Voltage and current
D. Current and time
5 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
6 For normal use:
A. Emitter base function is reversed biased
B. Collector base junction is reserved biased
C. Emitter base junction is forward biased
D. Both c and b
7 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
8 When a PN-Junction is reverse biased the depletion region is.
A. Widened
B. Narrowed
C. Normal
D. None of these
9 In full wave rectification number of diodes required are equal to.
A. 2
B. 3
C. 4
D. 5
10 The output voltage of a rectifier is.
A. Smooth
B. Pulsating
C. Alternating
D. Per featly direct

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