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If a unit charge is taken from one point to another over an equipotential surface, then ____.

work is done on the charge

work is done by the charge

work done on the charge is constant

no work is done

Materials which allow larger currents to flow through them are ____.

Insulators

semi-conductors

conductors

alloys

If 1 is the current through a wire and e is the charge of electron, then number of electrons in t seconds will be ____.

1e/t

1te

e/1t

1t/e

Conventionally, the direction of the current is taken as the direction of flow ____.

to negative charge

the direction of flow of atoms

of molecules

of positive charge

Ratio of the electrostatic to gravitational force between two electrons placed at a certain distance in air will be ____.

4.2 x1042

4.2 x 10-42

2.4 x 1024

2.4 x 10-24

If length of a wire is doubled and its cross-section is also doubled, then the resistance wills ____.

increases eight times

decreases four times

become four times

remain unchanged

Read the following statements carefully: Y : The resistively of a semiconductor decreases with increases of temperature. Z: In a conducing solid, the rate of collisions between free electrons and ions increases with increases of temperature Select the correct statement (s) from the following:

Y is true but Z is false

Y is false but Z is true

Both Y and Z are true

Is true and Z is the

Electric intensity at a point varies as r-3 for ____.

a point charge

an electric dipole

a plane infinite sheet of charge

a line charge of infinite length

If a pellet carrying a charge of 0.5 coulomb is accelerated through a potential of 2000 volts, then it attains a kinetic energy equal to ____.

1000 joule

1000 ergs

1000 kilowatt-hours

500 ergs

There is no flow of current between two charged bodies when connected because, they have the same ____.

quantity of charge

potential

capacity

ratio of potential per unit charge

work is done on the charge

work is done by the charge

work done on the charge is constant

no work is done

Materials which allow larger currents to flow through them are ____.

Insulators

semi-conductors

conductors

alloys

If 1 is the current through a wire and e is the charge of electron, then number of electrons in t seconds will be ____.

1e/t

1te

e/1t

1t/e

Conventionally, the direction of the current is taken as the direction of flow ____.

to negative charge

the direction of flow of atoms

of molecules

of positive charge

Ratio of the electrostatic to gravitational force between two electrons placed at a certain distance in air will be ____.

4.2 x1042

4.2 x 10-42

2.4 x 1024

2.4 x 10-24

If length of a wire is doubled and its cross-section is also doubled, then the resistance wills ____.

increases eight times

decreases four times

become four times

remain unchanged

Read the following statements carefully: Y : The resistively of a semiconductor decreases with increases of temperature. Z: In a conducing solid, the rate of collisions between free electrons and ions increases with increases of temperature Select the correct statement (s) from the following:

Y is true but Z is false

Y is false but Z is true

Both Y and Z are true

Is true and Z is the

Electric intensity at a point varies as r-3 for ____.

a point charge

an electric dipole

a plane infinite sheet of charge

a line charge of infinite length

If a pellet carrying a charge of 0.5 coulomb is accelerated through a potential of 2000 volts, then it attains a kinetic energy equal to ____.

1000 joule

1000 ergs

1000 kilowatt-hours

500 ergs

There is no flow of current between two charged bodies when connected because, they have the same ____.

quantity of charge

potential

capacity

ratio of potential per unit charge

This test consist of 10 questions.Students should ideally take 10 minutes to complete the test. This test is useful for those students who are preparing for IIT JEE, AIEEE or any other engineering entrance test. This test consist of questions from Current Electricity and which, in general, is focused in AIEEE and IIT JEE. In this chapter, Cells, emf and internal resistance are key topic and mostly application based questions are asked.

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