ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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ECAT Pre General Science Physics Chapter 13 Current Electricity

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Question # 1

Kirchhoff's first rule is also called:

Question # 2

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

Question # 3

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

Question # 4

Most practical application of electricity involve

Question # 5

In a metal, the valence electrons are:

Question # 6

An electric field is generated along the wire when:

Question # 7

The emf is measured in:

Question # 8

Magnetic effect of current is used:

Question # 9

An example of photoconductor is:

Question # 10

As the current flows through the wire

Question # 11

Heating effect of current utilized in:

Question # 12

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

Question # 13

The free electrons in metals:

Question # 14

Which instrument is expensive and difficult to use?

Question # 15

Selenium is:

Question # 16

Electrolysis is the study of conduction of electricity through:

Question # 17

The best conductor is:

Question # 18

The surface destiny of charge is defined is:

Question # 19

The charge carries in the electrolyte are:

Question # 20

As the current flow through the wire:

Question # 21

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

Question # 22

The inkjet printer ejects a thin stream of:

Question # 23

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

Question # 24

Field lines are closer to each other in the region where the field is:

Question # 25

An important part of photocopier is:

Question # 26

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

Question # 27

A rheostat can e used:

Question # 28

The value of resistivity is the least for:

Question # 29

In gases, the charge carriers are:

Question # 30

In gases, the charge carries are:

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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 The flux through a closed surface depends upon:
A.

Shape of geometry of the closed surface

B.

Charge enclosed

C.

Nature of the medium

D.

Both (A) and (B)
3

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
4 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)
5 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
6

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
7

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
8 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
9 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
10 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids

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