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

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Thermistors are prepared under

Question # 7

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

Question # 8

Most practical applications of electricity involve

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

An electric field is generated along the wire when:

Question # 13

The charge carriers in an electrolyte are

Question # 14

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

Question # 15

The third band of the colour code:

Question # 16

Heating effect of current utilized in:

Question # 17

Kirchhoff's first rule is also called:

Question # 18

The magnitude of chemical Effects depends upon:

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

In gases, the charge carriers are:

Question # 24

The obvious effect/s of current is/are:

Question # 25

The charge carries in the electrolyte are:

Question # 26

The value of relative permittivity of different dielectrics are:

Question # 27

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

Question # 28

In a metal, the valence electrons are:

Question # 29

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

Question # 30

Magnetic effect of current is used:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
2 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
3 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
4 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
5 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
6

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
7 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
8 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
9 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
10 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit

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