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

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Question # 1

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

Question # 2

Selenium is:

Question # 3

In case of metallic conductors, the change carries are:

Question # 4

A thermistor is a resistor which is:

Question # 5

The obvious effect/s of current is/are:

Question # 6

The emf is measured in:

Question # 7

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

Question # 8

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

Question # 9

Kirchhoff's first rule is also called:

Question # 10

An inkjet printer uses in its operation:

Question # 11

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

Question # 12

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

Question # 13

Heating effect of current utilized in:

Question # 14

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

Question # 15

An important part of photocopier is:

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

In case of metallic conductors, the charge carriers are

Question # 20

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Question # 21

The inkjet printer ejects a thin stream of:

Question # 22

In a metal, the valence electrons are:

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

Electric flux is:

Question # 27

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

Question # 28

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

Question # 29

In case of metallic conductors, the charge carriers are

Question # 30

Thermistors are prepared under

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
2

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
3 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
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 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
6

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)
7 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance
8 The earth’s potential and potential at infinity are taken:
A.

Equal

B.

Zero

C.

First is greater than the second

D.

Second is greater than the first
9

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
10 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma

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