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

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

Question # 2

Tick the correct statement:

Question # 3

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

Question # 4

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

Question # 5

Gaussian surface is always:

Question # 6

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

Question # 7

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

Question # 8

In a metal, the valence electrons are:

Question # 9

The best conductor is:

Question # 10

The value of resistivity is the least for:

Question # 11

As the current flows through the wire

Question # 12

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

Question # 13

The emf is measured in:

Question # 14

The obvious effect/s of current is/are:

Question # 15

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

Question # 16

SI unit of current describes the flow of charge at the rate of

Question # 17

As the current flow through the wire:

Question # 18

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 19

Aluminum is a:

Question # 20

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

Question # 21

Selenium is:

Question # 22

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

Question # 23

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

Question # 24

The fourth band is a:

Question # 25

Most practical application of electricity involve

Question # 26

The flux through a closed surface depends upon:

Question # 27

In a metal, the valence electrons are:

Question # 28

Electric flux is:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
2 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
3 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
4

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:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
5 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
6 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar
7

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

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell
8

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
9 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
10 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor

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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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