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

00:00
Question # 1

The effects of bends in a wire on its electrical resistance are:

Question # 2

Which instrument is expensive and difficult to use?

Question # 3

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

Question # 4

As the current flow through the wire:

Question # 5

Gaussian surface is always:

Question # 6

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

Question # 7

The third band of the colour code:

Question # 8

A thermistor is a resistor which is:

Question # 9

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

Question # 10

The value of resistivity is the least for:

Question # 11

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

Question # 12

In gases, the charge carriers are:

Question # 13

Xerography means:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

Electric field lines emerge from the charge in:

Question # 18

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

Question # 19

An important part of photocopier is:

Question # 20

A rheostat can e used:

Question # 21

The value of relative permittivity of different dielectrics are:

Question # 22

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

Question # 23

In a metal, the valence electrons are:

Question # 24

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

Question # 25

The charge carries in the electrolyte are:

Question # 26

In gases, the charge carries are:

Question # 27

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

Question # 28

The obvious effect/s of current is/are:

Question # 29

In case of metallic conductors, the charge carriers are

Question # 30

The inkjet printer ejects a thin stream of:

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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 emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
3 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
4 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
5

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
6 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)
7 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
8

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
9

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
10 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

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