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 flux through a closed surface depends upon:

Question # 2

The fourth band is a:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

An inkjet printer uses in its operation:

Question # 7

The charge carries in the electrolyte are:

Question # 8

Selenium is:

Question # 9

An eV is unit of:

Question # 10

The current that flows through the coil of a motor causes

Question # 11

A rheostat can e used:

Question # 12

Heating effect of current utilized in:

Question # 13

Which instrument is expensive and difficult to use?

Question # 14

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

Question # 15

The earth’s potential and potential at infinity are taken:

Question # 16

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

Question # 17

Electric field lines emerge from the charge in:

Question # 18

Gaussian surface is always:

Question # 19

A field free region is found:

Question # 20

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

Question # 21

Static electricity is produced by the transfer of:

Question # 22

Xerography means:

Question # 23

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

Question # 24

The best conductor is:

Question # 25

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

Question # 26

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

Question # 27

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Question # 28

The charge carriers in an electrolyte are

Question # 29

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

Question # 30

In a metal, the valence electrons are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
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 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
4 In a metal, the valence electrons are:
A. Attached to individual atoms
B. Not attached to individual atoms
C. Free to move within the metal
D. Both A and B
5 The current that flows through the coil of a motor causes
A. Its shaft to revolve
B. Its brushes to rotate
C. Motor to move
D. Its shaft to rotate
6

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

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)
7 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
8

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
9 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
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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