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

As the current flows through the wire

Question # 2

A rheostat can e used:

Question # 3

The third band of the colour code:

Question # 4

The flux through a closed surface depends upon:

Question # 5

The emf is measured in:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

In gases, the charge carries are:

Question # 11

The interior of a hollow charged metal sphere is a region which:

Question # 12

The fourth band is a:

Question # 13

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

Question # 14

The best conductor is:

Question # 15

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

Question # 16

Most practical application of electricity involve

Question # 17

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

Question # 18

The charge carriers in an electrolyte are

Question # 19

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

Question # 20

Selenium is:

Question # 21

In gases, the charge carriers are:

Question # 22

The charge carries in the electrolyte are:

Question # 23

Electric flux is:

Question # 24

An example of photoconductor is:

Question # 25

The strength of magnetic field at certain points around a wire depends upon:

Question # 26

Kirchhoff's first rule is also called:

Question # 27

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

Question # 28

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

Question # 29

An inkjet printer uses in its operation:

Question # 30

Magnetic effect of current is used:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
2 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
3

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)
4 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
5

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
6 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
7

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
8 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
9

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
10

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other

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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