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Worksheets

Current

Total questions: 15

Worksheet time: 30mins

Name
Class
Date
1.

What is the unit of current?

a)

ohm

b)

ampere

c)

volt

d)

joule

2.

An ammeter is a device that can be used to measure_____________.

a)

current

b)

voltage

c)

resistance

d)

power

3.

In a series circuit, which of the following is the same throughout the circuit?

a)

Resistance

b)

Voltage

c)

Current

d)

Power

4.

By convention, current is defined as flowing from ______________ to ______________.

a)

positive, negative

b)

positive, positive

c)

negative, positive

d)

negative, negative

5.

Which best describes a parallel circuit?

a)

Electricity flows along one pathway.

b)

Electricity flows along more than one pathway.

c)

The flow of electricity comes from more than one source.

6.

What do the arrows in the circuit represent?

a)

conventional current flow

b)

electron flow

c)

voltage

d)

resistance

7.

Which instrument is shown in the picture?

a)

voltmeter

b)

ammeter

c)

multimeter

d)

thermometer

8.

How to we connect an ammeter

a)

connected in series.

b)

connected in parallel.

9.

If the reading of A1 is 0.3 A, what is the reading of ammeter A2?

a)

0.1 A

b)

0.2 A

c)

0.3 A

d)

0.4 A

10.

A parallel Electric circuit was set up as shown in the diagram. The reading of Ammeter A1 is _________ A.

a)

0.1 A

b)

0.12 A

c)

0.7 A

d)

0.21 A

11.

A parallel circuit is set up using 3 similar lightbulbs as shown in the diagram. If the ammeter reading of A1 is 1.2 A, what is the reading of Ammeter A2 is _________ A

a)

0.1 A

b)

0.2 A

c)

0.3 A

d)

0.4 A

12.

A parallel circuit is set up using 3 similar lightbulbs as shown in the diagram. If the ammeter reading of A3 is 0.2 A, what is the reading of Ammeter A1 is _________ A

a)

0.1 A

b)

0.2 A

c)

0.4 A

d)

0.6 A

13.

What is wrong with this circuit diagram?

a)

There is only one cell

b)

A ammeter should be connected in parallel

c)

The ammeter should be connected in series

14.

Which ammeter will have the biggest reading?

a)

Ammeter 1

b)

Ammeter 2

c)

They will be the same

15.

In which of these two circuits is the current the same at all points?

a)

A

b)

B