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

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

Question # 2

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

Question # 3

An example of photoconductor is:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

In a metal, the valence electrons are:

Question # 8

The surface destiny of charge is defined is:

Question # 9

Electric field lines emerge from the charge in:

Question # 10

An electric field is generated along the wire when:

Question # 11

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

Question # 12

Tick the correct statement:

Question # 13

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

Question # 14

Most practical application of electricity involve

Question # 15

The flux through a closed surface depends upon:

Question # 16

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

Question # 17

A thermistor is a resistor which is:

Question # 18

The strength of magnetic field at certain points around a wire depends upon:

Question # 19

Which instrument is expensive and difficult to use?

Question # 20

Static electricity is produced by the transfer of:

Question # 21

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

Question # 22

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

Question # 23

A rheostat can e used:

Question # 24

The electric flux through any surface depends upon:

Question # 25

Xerography means:

Question # 26

Selenium is:

Question # 27

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

Question # 28

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

Question # 29

The emf is measured in:

Question # 30

An eV is unit of:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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
2 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
3 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
4 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
5 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)
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
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 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
10 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids

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