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

An important part of inkjet printer is:

Question # 2

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

Question # 3

Which instrument is expensive and difficult to use?

Question # 4

The obvious effect/s of current is/are:

Question # 5

In case of metallic conductors, the charge carriers are

Question # 6

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

Question # 7

As the current flow through the wire:

Question # 8

Electric field lines emerge from the charge in:

Question # 9

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

Question # 10

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

Question # 11

The surface destiny of charge is defined is:

Question # 12

The conventional current is the name given to current due to flow of

Question # 13

Magnetic effect of current is used:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

The charge carriers in an electrolyte are

Question # 18

Selenium is:

Question # 19

Electrolysis is the study of conduction of electricity through:

Question # 20

The flux through a closed surface depends upon:

Question # 21

In a metal, the valence electrons are:

Question # 22

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

Question # 23

The third band of the colour code:

Question # 24

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

Question # 25

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

Question # 26

Xerography means:

Question # 27

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

Question # 28

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

Question # 29

Tick the correct statement:

Question # 30

Kirchhoff's first rule is also called:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
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 example/s of non-electrical energy to electrical is/are:
A.

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
5

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
6 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
7 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
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 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
10

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above

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