ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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ECAT Pre General Science Physics Chapter 13 Current Electricity

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Question # 1

The term drift velocity is used when the ends of a wire are:

Question # 2

The obvious effect/s of current is/are:

Question # 3

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

Question # 4

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

Question # 5

Electrolysis is the study of conduction of electricity through:

Question # 6

Aluminum is a:

Question # 7

The surface destiny of charge is defined is:

Question # 8

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

Question # 9

A field free region is found:

Question # 10

The value of resistivity is the least for:

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

An important part of photocopier is:

Question # 16

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

Question # 17

A thermistor is a resistor which is:

Question # 18

The charge carries in the electrolyte are:

Question # 19

An ideal voltmeter has:

Question # 20

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

Question # 21

In a metal, the valence electrons are:

Question # 22

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

Question # 23

The current that flows through the coil of a motor causes

Question # 24

The emf is measured in:

Question # 25

As the current flows through the wire

Question # 26

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 # 27

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

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 best conductor is:

Question # 30

The flux through a closed surface depends upon:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
2

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
3

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
4 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
5 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
6 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
7 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
8 The flux through a closed surface depends upon:
A.

Shape of geometry of the closed surface

B.

Charge enclosed

C.

Nature of the medium

D.

Both (A) and (B)
9 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
10

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

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