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

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 2

When a constant potential difference is applied across the conductor, the drift velocity of electrons:

Question # 3

In gases, the charge carries are:

Question # 4

Electrolysis is the study of conduction of electricity through:

Question # 5

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

Question # 6

An important part of photocopier is:

Question # 7

An ideal voltmeter has:

Question # 8

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Question # 9

Most practical applications of electricity involve

Question # 10

The electric flux through any surface depends upon:

Question # 11

The quantity having the same unit as that of emf is:

Question # 12

Aluminum is a:

Question # 13

The surface destiny of charge is defined is:

Question # 14

The strength of magnetic field at certain points around a wire depends upon:

Question # 15

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

Question # 16

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

Question # 17

The value of relative permittivity of different dielectrics are:

Question # 18

The inkjet printer ejects a thin stream of:

Question # 19

Electric flux is:

Question # 20

The example/s of non-electrical energy to electrical is/are:

Question # 21

When a constant potential difference is applied across the conductor, the drift velocity of electrons:

Question # 22

The free electrons in metals:

Question # 23

Which instrument is expensive and difficult to use?

Question # 24

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge 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 effects of bends in a wire on its electrical resistance are:

Question # 27

The positive charge moving in one direction is equivalent in all external affects to a:

Question # 28

In a metal, the valence electrons are:

Question # 29

The charge carriers in an electrolyte are

Question # 30

As the current flow through the wire:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
2 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
3

The example/s of non-electrical energy to electrical is/are:
A.

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
4

Conversion of chemical energy to electrical energy can be achieved by:
A.

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell
5 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)
6 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
7 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
8 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
9 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
10 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

Test Questions

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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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