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

An inkjet printer uses in its operation:

Question # 2

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

Question # 3

An important part of photocopier is:

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

A thermistor is a resistor which is:

Question # 6

The value of resistivity is the least for:

Question # 7

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

Question # 8

The flux through a closed surface depends upon:

Question # 9

In case of metallic conductors, the change carries are:

Question # 10

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

Question # 11

A field free region is found:

Question # 12

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

Question # 13

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

Question # 14

Static electricity is produced by the transfer of:

Question # 15

An eV is unit of:

Question # 16

In a metal, the valence electrons are:

Question # 17

The charge carriers in an electrolyte are

Question # 18

Tick the correct statement:

Question # 19

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

Question # 20

The best conductor is:

Question # 21

The charge carries in the electrolyte are:

Question # 22

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

Question # 23

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

Question # 24

The obvious effect/s of current is/are:

Question # 25

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

Question # 26

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

Question # 27

Electric flux is:

Question # 28

The surface destiny of charge is defined is:

Question # 29

Kirchhoff's first rule is also called:

Question # 30

Heating effect of current utilized in:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
2 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
3

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
4

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)
5 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)
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

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
8 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
9 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
10 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum

Test Questions

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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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