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

The surface destiny of charge is defined is:

Question # 2

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

Question # 3

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

Question # 4

In case of metallic conductors, the charge carriers are

Question # 5

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

Question # 6

In a metal, the valence electrons are:

Question # 7

An electric field is generated along the wire when:

Question # 8

In gases, the charge carries are:

Question # 9

A field free region is found:

Question # 10

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

Question # 11

The value of relative permittivity of different dielectrics are:

Question # 12

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

Question # 13

Which instrument is expensive and difficult to use?

Question # 14

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

Question # 15

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 # 16

The flux through a closed surface depends upon:

Question # 17

Static electricity is produced by the transfer of:

Question # 18

The third band of the colour code:

Question # 19

The electric flux through any surface depends upon:

Question # 20

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

Question # 21

In case of metallic conductors, the charge carriers are

Question # 22

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

Question # 23

Kirchhoff's first rule is also called:

Question # 24

In case of metallic conductors, the change carries are:

Question # 25

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

Question # 26

Xerography means:

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

A thermistor is a resistor which is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
2 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
3 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
4 The number of field lines passing through unit area held perpendicular to the field lines represent:
A.

Flux in that region

B.

Intensity of the field

C.

Charge

D.

Area of the region
5 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
6 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)
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 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
9

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
10 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar

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