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

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

Question # 2

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

Question # 3

In gases, the charge carriers are:

Question # 4

Aluminum is a:

Question # 5

In a metal, the valence electrons are:

Question # 6

The fourth band is a:

Question # 7

The surface destiny of charge is defined is:

Question # 8

The flux through a closed surface depends upon:

Question # 9

The electric flux through any surface depends upon:

Question # 10

Xerography means:

Question # 11

The emf is measured in:

Question # 12

An important part of photocopier is:

Question # 13

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

Question # 14

In case of metallic conductors, the charge carriers are

Question # 15

The charge carries in the electrolyte are:

Question # 16

Gaussian surface is always:

Question # 17

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 # 18

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

Question # 19

An important part of inkjet printer is:

Question # 20

An eV is unit of:

Question # 21

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

Question # 22

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

Question # 23

The value of resistivity is the least for:

Question # 24

Electric field lines emerge from the charge in:

Question # 25

Most practical applications of electricity involve

Question # 26

An inkjet printer uses in its operation:

Question # 27

An electric field is generated along the wire when:

Question # 28

The obvious effect/s of current is/are:

Question # 29

A field free region is found:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
3 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
4 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
5 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
6

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

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
7 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
8

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)
9 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
10

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)

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