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

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

Question # 2

The charge carries in the electrolyte are:

Question # 3

The value of resistivity is the least for:

Question # 4

In case of metallic conductors, the charge carriers are

Question # 5

A field free region is found:

Question # 6

In case of metallic conductors, the charge carriers are

Question # 7

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

Question # 8

The inkjet printer ejects a thin stream of:

Question # 9

An important part of photocopier is:

Question # 10

The fourth band is a:

Question # 11

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

Question # 12

Aluminum is a:

Question # 13

The third band of the colour code:

Question # 14

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

Question # 15

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

Question # 16

The current that flows through the coil of a motor causes:

Question # 17

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

Question # 18

Magnetic effect of current is used:

Question # 19

Heating effect of current utilized in:

Question # 20

The best conductor is:

Question # 21

The emf is measured in:

Question # 22

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

Question # 23

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

Question # 24

An example of photoconductor is:

Question # 25

As the current flow through the wire:

Question # 26

In gases, the charge carriers are:

Question # 27

Which instrument is expensive and difficult to use?

Question # 28

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

Question # 29

Most practical applications of electricity involve

Question # 30

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
2 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
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 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
5

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
6 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
7

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
8

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
9 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
10 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)

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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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