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 ideal voltmeter has:

Question # 2

Gaussian surface is always:

Question # 3

As the current flow through the wire:

Question # 4

In case of metallic conductors, the charge carriers are

Question # 5

In case of metallic conductors, the change carries are:

Question # 6

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

Question # 7

The example/s of non-electrical energy to electrical is/are:

Question # 8

Selenium is:

Question # 9

The free electrons in metals:

Question # 10

The electric flux through any surface depends upon:

Question # 11

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

Question # 12

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

Question # 13

Two dissimilar metals joined at their ends kept at constant temperature constitute:

Question # 14

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

Question # 15

A rheostat can e used:

Question # 16

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 17

Most practical applications of electricity involve

Question # 18

As the current flows through the wire

Question # 19

An example of photoconductor is:

Question # 20

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

Question # 21

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

Question # 22

The fourth band is a:

Question # 23

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

Question # 24

The obvious effect/s of current is/are:

Question # 25

The charge carries in the electrolyte are:

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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)
2 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
3

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
4

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
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 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
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

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
9 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
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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