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

Most practical applications of electricity involve

Question # 2

The quantity having the same unit as that of emf is:

Question # 3

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

Question # 4

The fourth band is a:

Question # 5

An example of photoconductor is:

Question # 6

In a metal, the valence electrons are:

Question # 7

The charge carriers in an electrolyte are

Question # 8

An eV is unit of:

Question # 9

Aluminum is a:

Question # 10

Heating effect of current utilized in:

Question # 11

An ideal voltmeter has:

Question # 12

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

Question # 13

Thermistors are prepared under

Question # 14

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

Question # 15

As the current flow through the wire:

Question # 16

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

Question # 17

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

Question # 18

An important part of inkjet printer is:

Question # 19

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

Question # 20

Gaussian surface is always:

Question # 21

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

Question # 22

In a metal, the valence electrons are:

Question # 23

An inkjet printer uses in its operation:

Question # 24

The electric flux through any surface depends upon:

Question # 25

Which instrument is expensive and difficult to use?

Question # 26

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

Question # 27

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

Question # 28

The charge carries in the electrolyte are:

Question # 29

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

Question # 30

The surface destiny of charge is defined is:

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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 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
3

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)
4

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
5

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
6 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)
7 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
8 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
9

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
10 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)

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