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 important part of photocopier is:

Question # 2

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

Question # 3

In a metal, the valence electrons are:

Question # 4

An important part of inkjet printer is:

Question # 5

Thermistors are prepared under

Question # 6

The value of relative permittivity of different dielectrics are:

Question # 7

Electrolysis is the study of conduction of electricity through:

Question # 8

The electric flux through any surface depends upon:

Question # 9

The fourth band is a:

Question # 10

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

Question # 11

Which instrument is expensive and difficult to use?

Question # 12

In gases, the charge carries are:

Question # 13

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

Question # 14

The current that flows through the coil of a motor causes

Question # 15

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

Question # 16

Most practical application of electricity involve

Question # 17

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

Question # 18

An eV is unit of:

Question # 19

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 # 20

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

Question # 21

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

Question # 22

The positive charge moving in one direction is equivalent in all external affects to a:

Question # 23

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

Question # 24

An inkjet printer uses in its operation:

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

The emf is measured in:

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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

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
3

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:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
4

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
5 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
6 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)
7

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
8 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
9 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
10

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

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