ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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ECAT Pre General Science Physics Chapter 13 Current Electricity

00:00
Question # 1

In case of metallic conductors, the charge carriers are

Question # 2

Kirchhoff's first rule is also called:

Question # 3

The inkjet printer ejects a thin stream of:

Question # 4

An important part of photocopier is:

Question # 5

The surface destiny of charge is defined is:

Question # 6

Xerography means:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

The electric flux through any surface depends upon:

Question # 12

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

Question # 13

A rheostat can e used:

Question # 14

In gases, the charge carriers are:

Question # 15

An electric field is generated along the wire when:

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

The free electrons in metals:

Question # 21

An eV is unit of:

Question # 22

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

Question # 23

The obvious effect/s of current is/are:

Question # 24

In gases, the charge carries are:

Question # 25

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

Question # 26

Gaussian surface is always:

Question # 27

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

Question # 28

The charge carriers in an electrolyte are

Question # 29

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

Question # 30

Electric flux is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
2 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
3 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
4 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
5 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
8 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
9 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
10 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above

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