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 best conductor is:

Question # 2

A field free region is found:

Question # 3

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Question # 4

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

Question # 5

In case of metallic conductors, the charge carriers are

Question # 6

The value of relative permittivity of different dielectrics are:

Question # 7

Field lines are closer to each other in the region where the field is:

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

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

Question # 12

The emf is measured in:

Question # 13

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

Question # 14

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

Question # 15

A rheostat can e used:

Question # 16

In gases, the charge carries are:

Question # 17

In case of metallic conductors, the charge carriers are

Question # 18

The flux through a closed surface depends upon:

Question # 19

The electric flux through any surface depends upon:

Question # 20

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

Question # 21

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

Question # 22

The term drift velocity is used when the ends of a wire are:

Question # 23

Xerography means:

Question # 24

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

Question # 25

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

Question # 26

Aluminum is a:

Question # 27

A thermistor is a resistor which is:

Question # 28

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

Question # 29

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

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 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
2 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
3 The quantity having the same unit as that of emf is:
A. Force
B. Energy
C. Potential
D. Current
4 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
5 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
6

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
7

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
8 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
9

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
10

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box

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