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 electric flux through any surface depends upon:

Question # 2

A rheostat can e used:

Question # 3

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

Question # 4

The free electrons in metals:

Question # 5

The value of relative permittivity of different dielectrics are:

Question # 6

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

Question # 7

In case of metallic conductors, the change carries are:

Question # 8

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

Question # 9

The flux through a closed surface depends upon:

Question # 10

The best conductor is:

Question # 11

The emf is measured in:

Question # 12

Static electricity is produced by the transfer of:

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

An ideal voltmeter has:

Question # 18

An electric field is generated along the wire when:

Question # 19

As the current flow through the wire:

Question # 20

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

Question # 21

An inkjet printer uses in its operation:

Question # 22

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

Question # 23

A thermistor is a resistor which is:

Question # 24

The inkjet printer ejects a thin stream of:

Question # 25

An example of photoconductor is:

Question # 26

Tick the correct statement:

Question # 27

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

Question # 28

Xerography means:

Question # 29

Electrolysis is the study of conduction of electricity through:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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)
2

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
3 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
4

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)
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 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
7 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
8

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
9 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
10 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent

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