ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

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Physics ECAT Pre Engineering Chapter 13 Current Electricity

00:00
Question # 1

When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:

Question # 2

A field free region is found:

Question # 3

Most practical application of electricity involve

Question # 4

Selenium is:

Question # 5

An important part of photocopier is:

Question # 6

The conventional current is the name given to current due to flow of:

Question # 7

Thermistors are prepared under

Question # 8

The earth’s potential and potential at infinity are taken:

Question # 9

The value of relative permittivity of different dielectrics are:

Question # 10

In case of metallic conductors, the charge carriers are

Question # 11

In a metal, the valence electrons are:

Question # 12

An inkjet printer uses in its operation:

Question # 13

The term drift velocity is used when the ends of a wire are:

Question # 14

An important part of inkjet printer is:

Question # 15

The device which can convert heat energy into electrical energy is called:

Question # 16

The electric flux through any surface depends upon:

Question # 17

Two dissimilar metals joined at their ends kept at constant temperature constitute:

Question # 18

A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s

Question # 19

The magnitude of chemical Effects depends upon:

Question # 20

Aluminum is a:

Question # 21

Which of the following substances has got positive temperature coefficient of resistance?

Question # 22

In gases, the charge carriers are:

Question # 23

Electric flux is:

Question # 24

In case of metallic conductors, the charge carriers are

Question # 25

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

Question # 26

The flux through a closed surface depends upon:

Question # 27

SI unit of current describes the flow of charge at the rate of

Question # 28

The fourth band is a:

Question # 29

The effects of bends in a wire on its electrical resistance are:

Question # 30

A rheostat can e used:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
2

In order to have a constant current through wire, the potential difference across its end should:
A.

Be zero

B.

Be maintained constant

C.

Goes on increasing

D.

Go on decreasing
3 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
4 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
5 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
6 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
7 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar
8 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
9 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
10 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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