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

The surface destiny of charge is defined is:

Question # 2

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

Question # 3

An electric field is generated along the wire when:

Question # 4

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

Question # 5

The best conductor is:

Question # 6

The electric flux through any surface depends upon:

Question # 7

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

Question # 8

The obvious effect/s of current is/are:

Question # 9

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

Question # 10

In case of metallic conductors, the change carries are:

Question # 11

An important part of inkjet printer is:

Question # 12

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

Question # 13

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 14

The third band of the colour code:

Question # 15

The value of relative permittivity of different dielectrics are:

Question # 16

The passage of current is accompanied by a magnetic field in the surrounding space:

Question # 17

A rheostat can e used:

Question # 18

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

Question # 19

Magnetic effect of current is used:

Question # 20

When certain area A is held parallel to the field lines, then:

Question # 21

Selenium is:

Question # 22

Heating effect of current utilized in:

Question # 23

In a metal, the valence electrons are:

Question # 24

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

Question # 25

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:

Question # 26

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

Question # 27

In case of metallic conductors, the charge carriers are

Question # 28

The charge carries in the electrolyte are:

Question # 29

Aluminum is a:

Question # 30

In case of metallic conductors, the charge carriers are

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
2 The current that flows through the coil of a motor causes
A. Its shaft to revolve
B. Its brushes to rotate
C. Motor to move
D. Its shaft to rotate
3 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
4 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
5 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
6 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
7 In a metal, the valence electrons are:
A. Attached to individual atoms
B. Not attached to individual atoms
C. Free to move within the metal
D. Both A and B
8 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
9 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
10 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids

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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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