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

Question # 2

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

Question # 3

Thermistors are prepared under

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

An important part of photocopier is:

Question # 12

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

Question # 13

Field lines are closer to each other in the region where the field is:

Question # 14

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

Question # 15

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

Question # 16

A rheostat can e used:

Question # 17

Xerography means:

Question # 18

Electric field lines emerge from the charge in:

Question # 19

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 # 20

Kirchhoff's first rule is also called:

Question # 21

An example of photoconductor is:

Question # 22

The charge carriers in an electrolyte are

Question # 23

The magnitude of chemical Effects depends upon:

Question # 24

An electric field is generated along the wire when:

Question # 25

The value of relative permittivity of different dielectrics are:

Question # 26

Selenium is:

Question # 27

An important part of inkjet printer is:

Question # 28

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

Question # 29

Aluminum is a:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2

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)
3 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
4 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance
5

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
6 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
7 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 shaft to rotate
8 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
9 The number of field lines passing through unit area held perpendicular to the field lines represent:
A.

Flux in that region

B.

Intensity of the field

C.

Charge

D.

Area of the region
10 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

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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