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 current that flows through the coil of a motor causes

Question # 2

The value of relative permittivity of different dielectrics are:

Question # 3

The value of resistivity is the least for:

Question # 4

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 # 5

Gaussian surface is always:

Question # 6

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

Question # 7

Tick the correct statement:

Question # 8

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

Question # 9

Most practical application of electricity involve

Question # 10

In a metal, the valence electrons are:

Question # 11

Xerography means:

Question # 12

In a metal, the valence electrons are:

Question # 13

An inkjet printer uses in its operation:

Question # 14

In gases, the charge carriers are:

Question # 15

A field free region is found:

Question # 16

Electric flux is:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Thermistors are prepared under

Question # 21

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

Question # 22

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

Question # 23

Magnetic effect of current is used:

Question # 24

An important part of photocopier is:

Question # 25

In case of metallic conductors, the charge carriers are

Question # 26

The charge carriers in an electrolyte are

Question # 27

A thermistor is a resistor which is:

Question # 28

As the current flow through the wire:

Question # 29

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

Question # 30

The strength of magnetic field at certain points around a wire depends upon:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
3 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
4

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

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell
5 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
8 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
9 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
10

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

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