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Class Test - Electricity

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Name a device that helps to maintain a potential difference across a conductor.

a)

voltmeter

b)

Ammeter

c)

Cell

d)

Bulb

2.

How much energy is given to each coulomb of charge passing through a 6 V battery?

a)

6 J

b)

60 J

c)

6.023 J

d)

1 J

3.

What is meant by saying that the potential difference between two points is 1 V?

4 lines
4.

How much work is done in moving a charge of 2 C across two points having a potential difference 12 V?

a)

12 J

b)

24 J

c)

2 J

d)

6 J

5.

A current of 0.5 A is drawn by a filament of an electric bulb for 10 minutes. Find the amount of electric charge that flows through the circuit.

a)

0.5 C

b)

10 C

c)

30 C

d)

300 C

6.

Calculate the number of electrons constituting one coulomb of charge.

4 lines
7.

When electric current is passed, electrons move from:

a)

high potential to low potential.

b)

low potential to high potential.

c)

in the direction of the current.

d)

against the direction of the current

8.

The electrical resistance of insulators is

a)

high

b)

low

c)

zero

d)

infinitely high

9.

Electric potential is a:

a)

scalar quantity

b)

vector quantity

c)

neither scalar nor vector

d)

sometimes scalar and sometimes vector.

10.

1 mV is equal to:

a)

10 volt

b)

1000 Volt

c)

10 ^-3 Volt

d)

10^ -6 Volt