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

Selenium is:

Question # 2

In case of metallic conductors, the charge carriers are

Question # 3

As the current flow through the wire:

Question # 4

Aluminum is a:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

In gases, the charge carriers are:

Question # 10

The electric flux through any surface depends upon:

Question # 11

In a metal, the valence electrons are:

Question # 12

An inkjet printer uses in its operation:

Question # 13

The third band of the colour code:

Question # 14

Electrolysis is the study of conduction of electricity through:

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

A thermistor is a resistor which is:

Question # 19

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

Question # 20

Kirchhoff's first rule is also called:

Question # 21

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

Question # 22

When certain area A is held parallel to the field lines, then:

Question # 23

An example of photoconductor is:

Question # 24

A field free region is found:

Question # 25

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

Question # 26

An important part of photocopier is:

Question # 27

Most practical applications of electricity involve

Question # 28

Which instrument is expensive and difficult to use?

Question # 29

The obvious effect/s of current is/are:

Question # 30

The charge carriers in an electrolyte are

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
2 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
3 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
4 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
5 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
6 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
7 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
8

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

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

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
10 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons

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