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

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

Question # 2

Heating effect of current utilized in:

Question # 3

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

Question # 4

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 # 5

The magnitude of chemical Effects depends upon:

Question # 6

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

Question # 7

An inkjet printer uses in its operation:

Question # 8

Magnetic effect of current is used:

Question # 9

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

Question # 10

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 # 11

An electric field is generated along the wire when:

Question # 12

The surface destiny of charge is defined is:

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

In case of metallic conductors, the change carries are:

Question # 17

The value of resistivity is the least for:

Question # 18

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

Question # 19

Xerography means:

Question # 20

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

Question # 21

Electric flux is:

Question # 22

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

Question # 23

An example of photoconductor is:

Question # 24

The obvious effect/s of current is/are:

Question # 25

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

Question # 26

In case of metallic conductors, the charge carriers are

Question # 27

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

Question # 28

The quantity having the same unit as that of emf is:

Question # 29

The fourth band is a:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The surface destiny of charge is defined is:
A.

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area
2 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
3

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
4

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 shafts to rotate
5 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
6 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
7 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
8 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
9 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
10 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma

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