Second Year Physics Chapter 18 Online MCQ Test for 2nd Year Physics Chapter 18 Electronics Preparation

FSC Part 2 Physics
Chapter 18 Test

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Physics FSC Part 2 Chapter 18 Online MCQ's Test

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Question # 1

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

Question # 2

An expression for gain of an inverting amplifier is

Question # 3

The symbol of p-n-p transistor is

Question # 4

Logic gate can control some physical parameters like.

Question # 5

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

Question # 6

Which one has greater cone of impurity among all:

Question # 7

The impurity in the germinium is usually in the ratio of

Question # 8

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

Question # 9

A transistor has parts:

Question # 10

Greater concentration of impurity is added in.

Question # 11

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

Question # 12

A diode characteristics curve is a plot between

Question # 13

A device which converts low voltage or current to high voltage or current is called.

Question # 14

Photodiode is used for:

Question # 15

Photo diode detects.

Question # 16

_______ is the building block of every electronic circuit.

Question # 17

A.C. can be converted into D.C. by

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FSC 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 gate, which changes the logic level to its opposite level is called
A. NOR gate
B. AND gate
C. OR gate
D. NOT gate
2 The ratio Beta in transistor is called.
A. Voltage gain
B. Emitter gain
C. Current gain
D. Nuclear gain
3 For normal transistor the emitter current can be given by
A. IE = IC
B. IE = IC + IB
C. IE = IB
D. None of these
4 _______ is the building block of every electronic circuit.
A. Semi conductor diode
B. Resistor
C. Capacitor
D. Amplifier
5 Depletion region carries.
A. -ve charge
B. +ve charge
C. Ions
D. No charge
6 Photo diode is used for detection of.
A. Heat
B. Magnet
C. Current
D. Light
7 For automatic Switching of streetlight, the op amplifier is used as.
A. Inductor
B. Converter
C. Comparator
D. Thermistor
8 Which one has greater cone of impurity among all:
A. Emitter
B. Base
C. Collector
D. All are pure
9 Doping is made comparatively larger in
A. Emitter
B. Base
C. Collector
D. P -type semi conductor
10 the number of terminals in a semiconductor diode are
A. 2
B. 3
C. 4
D. 5

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