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

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Question # 1

The emf is measured in:

Question # 2

An important part of photocopier is:

Question # 3

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

Question # 4

The quantity having the same unit as that of emf is:

Question # 5

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

Question # 6

An ideal voltmeter has:

Question # 7

The third band of the colour code:

Question # 8

The inkjet printer ejects a thin stream of:

Question # 9

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

Question # 10

Gaussian surface is always:

Question # 11

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

Question # 12

Aluminum is a:

Question # 13

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

Question # 14

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 15

The best conductor is:

Question # 16

An important part of inkjet printer is:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Xerography means:

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

In gases, the charge carries are:

Question # 25

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

Question # 26

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 # 27

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

Question # 28

The magnitude of chemical Effects depends upon:

Question # 29

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

Question # 30

In a metal, the valence electrons are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
2 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
3 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
4

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

Its shaft to revolve

B.

Its brushes to rotate

C.

Motor to move

D.

Its shafts to rotate
5 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
6 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
7

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

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
8 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
9 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
10 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

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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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