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

Question # 2

The value of relative permittivity of different dielectrics are:

Question # 3

The flux through a closed surface depends upon:

Question # 4

An example of photoconductor is:

Question # 5

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

Question # 6

Aluminum is a:

Question # 7

A field free region is found:

Question # 8

A thermistor is a resistor which is:

Question # 9

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

Question # 10

Which instrument is expensive and difficult to use?

Question # 11

In a metal, the valence electrons are:

Question # 12

Kirchhoff's first rule is also called:

Question # 13

In a metal, the valence electrons are:

Question # 14

In case of metallic conductors, the charge carriers are

Question # 15

Heating effect of current utilized in:

Question # 16

The conventional current is the name given to current due to flow of

Question # 17

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

Question # 18

Selenium is:

Question # 19

The surface destiny of charge is defined is:

Question # 20

The obvious effect/s of current is/are:

Question # 21

In gases, the charge carriers are:

Question # 22

Most practical application of electricity involve

Question # 23

An ideal voltmeter has:

Question # 24

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

Question # 25

The device which can convert heat energy into electrical energy is called:

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

An important part of photocopier is:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
2 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
3 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
4 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
5 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
6 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
7 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
8 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
9 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature
10 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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