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

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 # 2

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

Question # 3

Most practical application of electricity involve

Question # 4

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

Question # 5

An important part of inkjet printer is:

Question # 6

A thermistor is a resistor which is:

Question # 7

Electrolysis is the study of conduction of electricity through:

Question # 8

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

Question # 9

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

Question # 10

The emf is measured in:

Question # 11

An example of photoconductor is:

Question # 12

An electric field is generated along the wire when:

Question # 13

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

Question # 14

The value of relative permittivity of different dielectrics are:

Question # 15

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

Question # 16

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

Question # 17

The electric flux through any surface depends upon:

Question # 18

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

Question # 19

The value of resistivity is the least for:

Question # 20

An important part of photocopier is:

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

An inkjet printer uses in its operation:

Question # 27

In case of metallic conductors, the charge carriers are

Question # 28

In case of metallic conductors, the change carries are:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
2 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
3

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
4 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
5 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
6 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
7 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
8 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
9 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
10 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)

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