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

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Question # 1

Improper bisting of a transistor circiut produces:

Question # 2

For automatic Switching of streetlight, the op amplifier is used as.

Question # 3

X=A+B is the mathematical notation for.

Question # 4

A transistor has parts:

Question # 5

For normal use:

Question # 6

OR gate is represented by:

Question # 7

A PN junction can not be sued a.

Question # 8

In case of op-amp as an inverting amplifier, V+ - V- = 0, this is because

Question # 9

The average gap for Germanium at 0K is

Question # 10

_______ is the building block of every electronic circuit.

Question # 11

The ratio Beta in transistor is called.

Question # 12

The term invertor is used for.

Question # 13

During negative half cycle of A.c then p-n junction offers.

Question # 14

The output of two input is zero only when its.

Question # 15

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

Question # 16

The P.D develop in case of germanium is:

Question # 17

NAND gate represented by:

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The chargeless region after formation of Pn junction is called:
A. Free region
B. Depletion region
C. Field region
D. U.V region
2 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
3 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)
4 A light emitting diode emits light only when
A. Reverse biased
B. Forward biased
C. Unbiased
D. None of these
5 Which factor does not affect the conductivity of PN-Junction diode.
A. Doping
B. Temperature
C. Voltage
D. Pressure
6 Pulsating output of full wave rectifier can be made smooth by using circuit called.
A. Filter
B. Amplifier
C. Resistor
D. Transistor
7 A photo diode can turn its current ON and OFF in
A. Micro seconds
B. Mega seconds
C. Nano seconds
D. Mili seconds
8 An expression for gain of an inverting amplifier is
C. (R1R2)
D. None of these
9 The symbol of p-n-p transistor is
10 _______ is the building block of every electronic circuit.
A. Semi conductor diode
B. Resistor
C. Capacitor
D. Amplifier

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