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

Question # 2

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

Question # 3

The value of resistivity is the least for:

Question # 4

In case of metallic conductors, the charge carriers are

Question # 5

A thermistor is a resistor which is:

Question # 6

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Question # 7

As the current flow through the wire:

Question # 8

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

Question # 9

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

Question # 10

The value of relative permittivity of different dielectrics are:

Question # 11

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

Question # 12

A rheostat can e used:

Question # 13

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

Question # 14

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

Question # 15

In case of metallic conductors, the change carries are:

Question # 16

Static electricity is produced by the transfer of:

Question # 17

Selenium is:

Question # 18

The flux through a closed surface depends upon:

Question # 19

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

Question # 20

Most practical applications of electricity involve

Question # 21

The best conductor is:

Question # 22

The surface destiny of charge is defined is:

Question # 23

In gases, the charge carriers are:

Question # 24

The quantity having the same unit as that of emf is:

Question # 25

The inkjet printer ejects a thin stream of:

Question # 26

Electric flux is:

Question # 27

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

Question # 28

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

Question # 29

Electric field lines emerge from the charge in:

Question # 30

Aluminum is a:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
2

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)
3

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

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
6

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
7 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
8

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
9

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
10 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor

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