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

Question # 2

In a metal, the valence electrons are:

Question # 3

A thermistor is a resistor which is:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

An electric field is generated along the wire when:

Question # 8

Which instrument is expensive and difficult to use?

Question # 9

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

Question # 10

Which of the following substances has got positive temperature coefficient of resistance?

Question # 11

In case of metallic conductors, the charge carriers are

Question # 12

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

Question # 13

Electrolysis is the study of conduction of electricity through:

Question # 14

Xerography means:

Question # 15

Gaussian surface is always:

Question # 16

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

Question # 17

The inkjet printer ejects a thin stream of:

Question # 18

Electric flux is:

Question # 19

An important part of photocopier is:

Question # 20

The fourth band is a:

Question # 21

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

Question # 22

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

Question # 23

The charge carries in the electrolyte are:

Question # 24

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

Question # 25

The value of relative permittivity of different dielectrics are:

Question # 26

The obvious effect/s of current is/are:

Question # 27

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

Question # 28

Most practical application of electricity involve

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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)
2 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
3

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:
A.

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
4 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
5

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
6 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
7 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
8 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
9

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)
10

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

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell

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