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

The inkjet printer ejects a thin stream of:

Question # 2

The value of relative permittivity of different dielectrics are:

Question # 3

The current that flows through the coil of a motor causes:

Question # 4

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

Question # 5

In a metal, the valence electrons are:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

In case of metallic conductors, the charge carriers are

Question # 10

As the current flow through the wire:

Question # 11

In case of metallic conductors, the change carries are:

Question # 12

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

Question # 13

An important part of photocopier is:

Question # 14

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

Question # 15

The value of resistivity is the least for:

Question # 16

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

Question # 17

In gases, the charge carries are:

Question # 18

In gases, the charge carriers are:

Question # 19

Magnetic effect of current is used:

Question # 20

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

Question # 21

Most practical application of electricity involve

Question # 22

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

Question # 23

An ideal voltmeter has:

Question # 24

An eV is unit of:

Question # 25

Thermistors are prepared under

Question # 26

The example/s of non-electrical energy to electrical is/are:

Question # 27

A rheostat can e used:

Question # 28

In case of metallic conductors, the charge carriers are

Question # 29

The fourth band is a:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
2

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
3 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
4 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
5

The effects of bends in a wire on its electrical resistance are:
A.

Zero

B.

Much larger

C.

Larger

D.

Smaller
6

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
7

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
8 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
9 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
10 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

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