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

An eV is unit of:

Question # 2

In gases, the charge carriers are:

Question # 3

In case of metallic conductors, the charge carriers are

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

In case of metallic conductors, the change carries are:

Question # 9

The inkjet printer ejects a thin stream of:

Question # 10

Heating effect of current utilized in:

Question # 11

An inkjet printer uses in its operation:

Question # 12

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

Question # 13

Electrolysis is the study of conduction of electricity through:

Question # 14

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

Question # 15

A rheostat can e used:

Question # 16

As the current flows through the wire

Question # 17

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

Question # 18

The best conductor is:

Question # 19

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

Question # 20

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

Question # 21

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 # 22

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

Question # 23

In a metal, the valence electrons are:

Question # 24

The charge carriers in an electrolyte 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 example/s of non-electrical energy to electrical is/are:

Question # 27

Magnetic effect of current is used:

Question # 28

The flux through a closed surface depends upon:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 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)
3

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

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)
4 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
5 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
6

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
7 The quantity having the same unit as that of emf is:
A. Force
B. Energy
C. Potential
D. Current
8 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
9 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
10

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above

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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