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

Thermistors are prepared under

Question # 2

The surface destiny of charge is defined is:

Question # 3

In case of metallic conductors, the charge carriers are

Question # 4

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

Question # 5

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 6

Which instrument is expensive and difficult to use?

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

In case of metallic conductors, the change carries are:

Question # 11

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

Question # 12

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

Question # 13

The current that flows through the coil of a motor causes

Question # 14

A field free region is found:

Question # 15

Heating effect of current utilized in:

Question # 16

Selenium is:

Question # 17

The inkjet printer ejects a thin stream of:

Question # 18

The current that flows through the coil of a motor causes:

Question # 19

In gases, the charge carries are:

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

The electric flux through any surface depends upon:

Question # 22

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

Question # 23

In a metal, the valence electrons are:

Question # 24

The interior of a hollow charged metal sphere is a region which:

Question # 25

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

Question # 26

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 27

In gases, the charge carriers are:

Question # 28

Static electricity is produced by the transfer of:

Question # 29

The charge carriers in an electrolyte are

Question # 30

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

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Sr.# Question Answer
1

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
2 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
3 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
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

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
6 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
7

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
8 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
9 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
10 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)

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