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

The P.D develop in case of germanium is:

Question # 2

The mathematical symbol for NOR operation is

Question # 3

A light emitting diode emits light only when

Question # 4

For normal use:

Question # 5

A PN junction can not be sued a.

Question # 6

The ratio Beta in transistor is called.

Question # 7

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

Question # 8

Truth table of logic function.

Question # 9

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

Question # 10

In photovoltaic cell, current is directly proportional to.

Question # 11

Which device is used as a rectifier?

Question # 12

The potential difference across depletion region in case of Si is

Question # 13

Transistor was invented by:

Question # 14

The output of two input is zero only when its.

Question # 15

Which one has greater cone of impurity among all:

Question # 16

_______ is the building block of every electronic circuit.

Question # 17

The potential difference across the depletion region of germanium is.

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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 Which is not fundamental logic gate.
A. NOT
B. AND
C. OR
D. NAND
2 An expression for gain of an inverting amplifier is
C. (R1R2)
D. None of these
3 A.C. can be converted into D.C. by
A. An oscillator
B. Detector
C. An amplifier
D. Rectifier
4 Reverse current flows due to
A. Majority charge carriers
B. Minority charge carriers
C. Electrons
D. Holes
5 In full wave rectification number of diodes required are equal to.
A. 2
B. 3
C. 4
D. 5
6 Minimum number of semi conductor diodes required for full wave rectification are.
A. 1
B. 2
C. 3
D. 4
7 LDR becomes necessary when op amp is used as a
A. Night switch
B. Inverter
C. Comparator
D. Rectifier
8 For normal transistor the emitter current can be given by
A. IE = IC
B. IE = IC + IB
C. IE = IB
D. None of these
9 Depletion region carries.
A. -ve charge
B. +ve charge
C. Ions
D. No charge
10 The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.
A. Ohms
B. Kilo Ohms
C. Mega Ohms
D. Thounds Ohms

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