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

A thermistor is a resistor which is:

Question # 2

The obvious effect/s of current is/are:

Question # 3

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

Question # 4

Xerography means:

Question # 5

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

Question # 6

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

Question # 7

Gaussian surface is always:

Question # 8

The value of resistivity is the least for:

Question # 9

In order to have a constant current through wire, the potential difference across its end should:

Question # 10

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

Question # 11

The emf is measured in:

Question # 12

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

Question # 13

The best conductor is:

Question # 14

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

Question # 15

Static electricity is produced by the transfer of:

Question # 16

The free electrons in metals:

Question # 17

An important part of photocopier is:

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

Magnetic effect of current is used:

Question # 22

The interior of a hollow charged metal sphere is a region which:

Question # 23

The value of relative permittivity of different dielectrics are:

Question # 24

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

Question # 25

Which instrument is expensive and difficult to use?

Question # 26

As the current flow through the wire:

Question # 27

The current that flows through the coil of a motor causes

Question # 28

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

Question # 29

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

Question # 30

The inkjet printer ejects a thin stream of:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
2 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
3 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
4

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)
5 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
6 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
7 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
8 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
9

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
10 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs

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