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

Static electricity is produced by the transfer of:

Question # 2

In order to have a constant current through wire, the potential difference across its end should:

Question # 3

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

Question # 4

Tick the correct statement:

Question # 5

The effects of bends in a wire on its electrical resistance are:

Question # 6

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

Question # 7

The fourth band is a:

Question # 8

The current that flows through the coil of a motor causes

Question # 9

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

Question # 10

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

Question # 11

Electric field lines emerge from the charge in:

Question # 12

In case of metallic conductors, the change carries are:

Question # 13

A thermistor is a resistor which is:

Question # 14

The value of resistivity is the least for:

Question # 15

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

Question # 16

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

Question # 17

Gaussian surface is always:

Question # 18

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

Question # 19

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

Question # 20

An electric field is generated along the wire when:

Question # 21

An example of photoconductor is:

Question # 22

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

Question # 23

The value of relative permittivity of different dielectrics are:

Question # 24

In gases, the charge carries are:

Question # 25

The charge carries in the electrolyte are:

Question # 26

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

Question # 27

In a metal, the valence electrons are:

Question # 28

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

Question # 29

The charge carriers in an electrolyte are

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
2 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
3 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
4 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
5

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
6 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
7 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
8

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

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion
9 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
10 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons

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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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