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

A rheostat can e used:

Question # 2

The charge carriers in an electrolyte are

Question # 3

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 4

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

Question # 5

The electric flux through any surface depends upon:

Question # 6

Which instrument is expensive and difficult to use?

Question # 7

The charge carries in the electrolyte are:

Question # 8

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

Question # 9

Tick the correct statement:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

An example of photoconductor is:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

An ideal voltmeter has:

Question # 19

Electrolysis is the study of conduction of electricity through:

Question # 20

The emf is measured in:

Question # 21

Xerography means:

Question # 22

The value of resistivity is the least for:

Question # 23

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

Question # 24

Most practical applications of electricity involve

Question # 25

In gases, the charge carries are:

Question # 26

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

Question # 27

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

Question # 28

The magnitude of chemical Effects depends upon:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
4

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)
5 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
6 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
7 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
8

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

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion
9 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
10 The surface destiny of charge is defined is:
A.

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area

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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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