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

The surface destiny of charge is defined is:

Question # 2

Most practical application of electricity involve

Question # 3

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

Question # 4

Aluminum is a:

Question # 5

An inkjet printer uses in its operation:

Question # 6

Magnetic effect of current is used:

Question # 7

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

Question # 8

An eV is unit of:

Question # 9

The positive charge moving in one direction is equivalent in all external affects to a:

Question # 10

The obvious effect/s of current is/are:

Question # 11

The best conductor is:

Question # 12

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

Question # 13

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

Question # 14

Another mean of electric potential energy per unit charge is given by:

Question # 15

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

Question # 16

The magnitude of chemical Effects depends upon:

Question # 17

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

Question # 18

An ideal voltmeter has:

Question # 19

An important part of photocopier is:

Question # 20

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

Question # 21

Which instrument is expensive and difficult to use?

Question # 22

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

Question # 23

The value of relative permittivity of different dielectrics are:

Question # 24

The flux through a closed surface depends upon:

Question # 25

In gases, the charge carries are:

Question # 26

Thermistors are prepared under

Question # 27

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

Question # 28

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

Question # 29

Electric field lines emerge from the charge in:

Question # 30

Electrolysis is the study of conduction of electricity through:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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)
2

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
3 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
4 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
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 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
7 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
8 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
9

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
10 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference

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