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

An important part of photocopier is:

Question # 2

Heating effect of current utilized in:

Question # 3

The inkjet printer ejects a thin stream of:

Question # 4

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

Question # 5

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

Question # 6

Xerography means:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

An ideal voltmeter has:

Question # 11

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

Question # 12

The surface destiny of charge is defined is:

Question # 13

The charge carries in the electrolyte are:

Question # 14

The charge carriers in an electrolyte are

Question # 15

In case of metallic conductors, the change carries are:

Question # 16

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

Question # 17

An electric field is generated along the wire when:

Question # 18

In a metal, the valence electrons are:

Question # 19

The electric flux through any surface depends upon:

Question # 20

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

Question # 21

In gases, the charge carriers are:

Question # 22

The value of relative permittivity of different dielectrics are:

Question # 23

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

Question # 24

The value of resistivity is the least for:

Question # 25

A rheostat can e used:

Question # 26

A field free region is found:

Question # 27

In case of metallic conductors, the charge carriers are

Question # 28

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

Question # 29

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

Question # 30

Gaussian surface is always:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
2 The surface destiny of charge is defined is:
A.

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area
3

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
4 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)
5

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
6 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
7

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
8

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
9 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
10

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)

Test Questions

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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