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

The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.

Question # 2

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

Question # 3

In a transistor, collector current is controlled by:

Question # 4

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

Question # 5

Output resistance of an op amp is

Question # 6

Reverse current flows due to

Question # 7

X=A+B is the mathematical notation for.

Question # 8

The output voltage of a rectifier is.

Question # 9

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

Question # 10

The potential difference across the depletion region of germanium is.

Question # 11

NAND gate represented by:

Question # 12

Logic gate can control some physical parameters like.

Question # 13

The p-n junction in which p side is connected to+ive and n-side is -ve the junction is said to be:

Question # 14

Photo diode detects.

Question # 15

Greater concentration of impurity is added in.

Question # 16

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

Question # 17

Depletion region carries.

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 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)
2 Logic gate can control some physical parameters like.
A. Temperature, Pressure
B. Resistance, Inductance
C. Capacitance, Impedance
D. Current, voltage
3 The potential difference across depletion region in case of Si is
A. 0.6 volt
B. 0.9 volt
C. 0.7 volt
D. 0.2 volt
4 Conversion of A.C into D.C is called:
A. Compton effect
B. Rectification
C. Amplification 
D. Pair production
5 The potential difference across the depletion region of germanium is.
A. 0.3 V
B. 0.5 V
C. 0.7 V
D. 0.8 V
6 Base of transistor is of order:
A. 10-11m
B. 106m
C. 10-8m
D. 10-6m
7 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
8 The gain of transistor amplifier depends upon
A. Resistance connected with collector
B. Resistance connected with base voltage
C. Input voltage
D. Output voltage
9 Automatic function of street light can be done by the use of.
A. Inductor
B. Rectifier
C. Comparator
D. emf
10 The reverse saturation current in a PN junction diode is only due to:
A. Majority carriers
B. Minoritycarriers
C. Acceptor ions
D. Donor ions

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