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 positive charge moving in one direction is equivalent in all external affects to a:

Question # 2

In a metal, the valence electrons are:

Question # 3

The value of relative permittivity of different dielectrics are:

Question # 4

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

Question # 5

An example of photoconductor is:

Question # 6

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

Question # 7

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

Question # 8

Heating effect of current utilized in:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

In a metal, the valence electrons are:

Question # 13

The electric flux through any surface depends upon:

Question # 14

In gases, the charge carries are:

Question # 15

A field free region is found:

Question # 16

Kirchhoff's first rule is also called:

Question # 17

An important part of photocopier is:

Question # 18

Tick the correct statement:

Question # 19

In case of metallic conductors, the charge carriers are

Question # 20

The obvious effect/s of current is/are:

Question # 21

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

Question # 22

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

Question # 23

In gases, the charge carriers are:

Question # 24

The charge carriers in an electrolyte are

Question # 25

As the current flows through the wire

Question # 26

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

Question # 27

Static electricity is produced by the transfer of:

Question # 28

Most practical application of electricity involve

Question # 29

Xerography means:

Question # 30

The fourth band is a:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
2

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
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 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
5 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
6

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

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
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 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
10 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one

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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