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

The current that flows through the coil of a motor causes

Question # 2

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

Question # 3

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

Question # 4

Electric field lines emerge from the charge in:

Question # 5

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 6

The electric flux through any surface depends upon:

Question # 7

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

Question # 8

Kirchhoff's first rule is also called:

Question # 9

SI unit of current describes the flow of charge at the rate of

Question # 10

Selenium is:

Question # 11

In gases, the charge carriers are:

Question # 12

In case of metallic conductors, the change carries are:

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

The charge carriers in an electrolyte are

Question # 17

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

Question # 18

The obvious effect/s of current is/are:

Question # 19

The fourth band is a:

Question # 20

The flux through a closed surface depends upon:

Question # 21

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

Question # 22

As the current flow through the wire:

Question # 23

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

Question # 24

A thermistor is a resistor which is:

Question # 25

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

Question # 26

Aluminum is a:

Question # 27

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

Question # 28

Most practical application of electricity involve

Question # 29

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 # 30

A rheostat can e used:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
2 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
3 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
4 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
5

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
6 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
7 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
8 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
9 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
10 In a metal, the valence electrons are:
A. Attached to individual atoms
B. Not attached to individual atoms
C. Free to move within the metal
D. Both A and B

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