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

00:00
Question # 1

An eV is unit of:

Question # 2

In case of metallic conductors, the change carries are:

Question # 3

The free electrons in metals:

Question # 4

Gaussian surface is always:

Question # 5

In case of metallic conductors, the charge carriers are

Question # 6

In a metal, the valence electrons are:

Question # 7

As the current flow through the wire:

Question # 8

In gases, the charge carriers are:

Question # 9

A rheostat can e used:

Question # 10

A thermistor is a resistor which is:

Question # 11

Magnetic effect of current is used:

Question # 12

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

Question # 13

The fourth band is a:

Question # 14

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

Question # 15

The current that flows through the coil of a motor causes

Question # 16

Thermistors are prepared under

Question # 17

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

Question # 18

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

Question # 19

The magnitude of chemical Effects depends upon:

Question # 20

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

Question # 21

The charge carriers in an electrolyte are

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

Xerography means:

Question # 27

Electrolysis is the study of conduction of electricity through:

Question # 28

An example of photoconductor is:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
2

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
3 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
4 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
5

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
6

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
7 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
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 shaft to rotate
9

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)
10 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing

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