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

In a metal, the valence electrons are:

Question # 2

Static electricity is produced by the transfer of:

Question # 3

The charge carriers in an electrolyte are

Question # 4

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

Question # 5

A field free region is found:

Question # 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:

Question # 7

Which instrument is expensive and difficult to use?

Question # 8

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

Question # 9

Tick the correct statement:

Question # 10

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

Question # 11

Heating effect of current utilized in:

Question # 12

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

Question # 13

The best conductor is:

Question # 14

The electric flux through any surface depends upon:

Question # 15

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

Question # 16

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

Question # 17

In order to have a constant current through wire, the potential difference across its end should:

Question # 18

Electrolysis is the study of conduction of electricity through:

Question # 19

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

Question # 20

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

Question # 21

As the current flow through the wire:

Question # 22

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

Question # 23

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

Question # 24

An ideal voltmeter has:

Question # 25

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

Question # 26

Electric flux is:

Question # 27

In case of metallic conductors, the change carries are:

Question # 28

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

Question # 29

The surface destiny of charge is defined is:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

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 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
3 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
4 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
5 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

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 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
8 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
9 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
10

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

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