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 quantity having the same unit as that of emf is:

Question # 2

The magnitude of chemical Effects depends upon:

Question # 3

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

Question # 4

A field free region is found:

Question # 5

An ideal voltmeter has:

Question # 6

As the current flows through the wire

Question # 7

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

Question # 8

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

Question # 9

As the current flow through the wire:

Question # 10

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 # 11

Thermistors are prepared under

Question # 12

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

Question # 13

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

Question # 14

In case of metallic conductors, the charge carriers are

Question # 15

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

Question # 16

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

Question # 17

The flux through a closed surface depends upon:

Question # 18

Selenium is:

Question # 19

An inkjet printer uses in its operation:

Question # 20

The emf is measured in:

Question # 21

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

Question # 22

The surface destiny of charge is defined is:

Question # 23

The best conductor is:

Question # 24

Electric field lines emerge from the charge in:

Question # 25

An important part of photocopier is:

Question # 26

Gaussian surface is always:

Question # 27

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

Question # 28

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

Question # 29

The value of relative permittivity of different dielectrics are:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The earth’s potential and potential at infinity are taken:
A.

Equal

B.

Zero

C.

First is greater than the second

D.

Second is greater than the first
2 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
3 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
4 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
5 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
6 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
7 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
8 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
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 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing

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