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

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

Question # 2

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

Question # 3

In case of metallic conductors, the charge carriers are

Question # 4

In a metal, the valence electrons are:

Question # 5

Thermistors are prepared under

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The inkjet printer ejects a thin stream of:

Question # 10

An example of photoconductor is:

Question # 11

Electric flux is:

Question # 12

In a metal, the valence electrons are:

Question # 13

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

Question # 14

The interior of a hollow charged metal sphere is a region which:

Question # 15

Most practical application of electricity involve

Question # 16

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

Question # 17

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

Question # 18

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

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

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

Question # 21

The obvious effect/s of current is/are:

Question # 22

An eV is unit of:

Question # 23

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

Question # 24

An inkjet printer uses in its operation:

Question # 25

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

Question # 26

In gases, the charge carries are:

Question # 27

The current that flows through the coil of a motor causes

Question # 28

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

Question # 29

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

Question # 30

An important part of photocopier is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The quantity having the same unit as that of emf is:
A. Force
B. Energy
C. Potential
D. Current
2

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)
3 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)
4 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
5 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
6

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
7

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)
8

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
9 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
10

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

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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