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

Tick the correct statement:

Question # 2

Electrolysis is the study of conduction of electricity through:

Question # 3

Which instrument is expensive and difficult to use?

Question # 4

The fourth band is a:

Question # 5

In case of metallic conductors, the change carries are:

Question # 6

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

Question # 7

Gaussian surface is always:

Question # 8

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

Question # 9

The current that flows through the coil of a motor causes

Question # 10

Most practical application of electricity involve

Question # 11

Most practical applications of electricity involve

Question # 12

Magnetic effect of current is used:

Question # 13

An eV is unit of:

Question # 14

The value of resistivity is the least for:

Question # 15

A field free region is found:

Question # 16

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

Question # 17

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

Question # 18

The free electrons in metals:

Question # 19

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

Question # 20

In gases, the charge carries are:

Question # 21

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 22

Field lines are closer to each other in the region where the field is:

Question # 23

In gases, the charge carriers are:

Question # 24

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

Question # 25

As the current flow through the wire:

Question # 26

Electrostatics is the branch of physics which deals with the study of electro charges:

Question # 27

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Question # 28

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

Question # 29

The best conductor is:

Question # 30

Kirchhoff's first rule is also called:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
2

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
3 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
4 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
5 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature
6 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
7

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
8 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance
9 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
10

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

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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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