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

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

An eV is unit of:

Question # 5

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

Question # 6

The third band of the colour code:

Question # 7

The electric flux through any surface depends upon:

Question # 8

A field free region is found:

Question # 9

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

Question # 10

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:

Question # 11

In a metal, the valence electrons are:

Question # 12

Which instrument is expensive and difficult to use?

Question # 13

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

Question # 14

Selenium is:

Question # 15

In case of metallic conductors, the change carries are:

Question # 16

Another mean of electric potential energy per unit charge is given by:

Question # 17

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

Question # 18

Most practical application of electricity involve

Question # 19

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

Question # 20

The value of resistivity is the least for:

Question # 21

Tick the correct statement:

Question # 22

Gaussian surface is always:

Question # 23

The obvious effect/s of current is/are:

Question # 24

As the current flow through the wire:

Question # 25

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

Question # 26

The fourth band is a:

Question # 27

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

Question # 28

An important part of inkjet printer is:

Question # 29

In gases, the charge carriers are:

Question # 30

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:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
2 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
3

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
4

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 shafts to rotate
5 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
6

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
7

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
8 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
9 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
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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