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

In case of metallic conductors, the change carries are:

Question # 2

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

Question # 3

An important part of inkjet printer is:

Question # 4

An eV is unit of:

Question # 5

In gases, the charge carriers are:

Question # 6

Which instrument is expensive and difficult to use?

Question # 7

The inkjet printer ejects a thin stream of:

Question # 8

Gaussian surface is always:

Question # 9

Electrolysis is the study of conduction of electricity through:

Question # 10

The free electrons in metals:

Question # 11

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

Question # 12

The best conductor is:

Question # 13

Selenium is:

Question # 14

Most practical application of electricity involve

Question # 15

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

Question # 16

Static electricity is produced by the transfer of:

Question # 17

Xerography means:

Question # 18

In case of metallic conductors, the charge carriers are

Question # 19

An ideal voltmeter has:

Question # 20

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

Question # 21

The obvious effect/s of current is/are:

Question # 22

In gases, the charge carries are:

Question # 23

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 # 24

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

Question # 25

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

Question # 26

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

Question # 27

The flux through a closed surface depends upon:

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
3 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
4

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:
A.

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
5 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
6 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
7 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
8

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
9 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
10 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

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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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