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

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

Question # 2

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

Question # 3

The obvious effect/s of current is/are:

Question # 4

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

Question # 5

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

Question # 6

The charge carries in the electrolyte are:

Question # 7

As the current flows through the wire

Question # 8

The flux through a closed surface depends upon:

Question # 9

The value of relative permittivity of different dielectrics are:

Question # 10

Static electricity is produced by the transfer of:

Question # 11

An important part of inkjet printer is:

Question # 12

Xerography means:

Question # 13

The value of resistivity is the least for:

Question # 14

The interior of a hollow charged metal sphere is a region which:

Question # 15

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

Question # 16

An example of photoconductor is:

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

In a metal, the valence electrons are:

Question # 20

Aluminum is a:

Question # 21

The fourth band is a:

Question # 22

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

Question # 23

Gaussian surface is always:

Question # 24

Electrolysis is the study of conduction of electricity through:

Question # 25

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

Question # 26

As the current flow through the wire:

Question # 27

In case of metallic conductors, the change carries are:

Question # 28

In case of metallic conductors, the charge carriers are

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
2 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
3 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
4 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
5 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
6

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
7

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
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 shafts to rotate
9 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
10 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape

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