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Chapter(8) Electric Potential

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.

(1) Electric potential difference is measured in_____ .

a)

ampere

b)

watt

c)

volt

2.

Work done is independent of the _____ taken by the charge.

a)

path

b)

method

c)

force

3.

The electric lines of force are _____ to the equipotential surfaces.

a)

parallel

b)

perpendicular

c)

none of these

4.

The earth is a good_____ of electricity.

a)

conductor

b)

insulator

c)

semiconductor

5.

The unit newton per coulomb is the same as ______ .

a)

Wm-2

b)

Vm-1

c)

Vm-2

6.

The electric potential at infinite distance from a point charge is _____.

a)

zero

b)

infinity

c)

none of these

7.

The amount of work done in moving a charge of +5µC from one point to another on an equipotential surface of 104 V is ____.

a)

5x10-2J

b)

5x104J

c)

zero

8.

The radius of an equipotential surface of 300V surrounding a point charge of +1.5µC is

a)

45m

b)

450m

c)

4.5m

9.

The earth can receive as well as give out quite a number of _____.

a)

protons

b)

electrons

c)

neutrons

10.

On an equipotential surface, the charges are_____.

a)

moving

b)

stationary

c)

none of these

11.

If the charge on an metal sphere is doubled, the electric potential inside the sphere is ____.

a)

doubled

b)

quadrupled

c)

remains the same

12.

The electron volt (eV) is a unit of _____.

a)

potential

b)

charge

c)

energy

13.

Equipotential surfaces in an electric field are always ____.

a)

spherical

b)

perpendicular to the electric lines of force

c)

closed surface

14.

The term "joule per coulomb " is the same as____.

a)

watt

b)

ohm

c)

volt

15.

If an electron moves from point P to Q in an electric field, point P will have ____ potential.

a)

higher

b)

lower

c)

zero

16.

The electric potential at the points equidistant from +Q have_____.

a)

same magnitude

b)

zero

c)

none of these

17.

The electric field intensity between two oppositely charged parallel plates______.

a)

varies inversely as the distance

b)

varies as the square of the distance

c)

is uniform

18.

The earth has a plenty of______.

a)

free neutrons

b)

free protons

c)

free electrons

19.

An uncharged body has ____ electric potential.

a)

no

b)

volt

c)

infinite

20.

One volt is defined as _____.

a)

one coulomb per second

b)

one joule per coulomb

c)

an ampere-second