IGCSE Circuits

The picture shows an electrical circuit. This circuit is a series circuit because: 

• It has 3 light bulbs.
• The same current flows through all three light bulbs.
• It uses a single battery.
• The electrical current is divided between the three light bulbs.

What kind of circuit is this?

• series
• parallel

In a Series circuit the more lightbulbs you add the brighter they get 

• False 
• True 

What is a Parallel circuit? 

• Has only one path 
• Has more than one path 
• Allows energy to travel through easily 

In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?

• TRUE
• FALSE

Two resistors are connected to a source of voltage as shown in the diagram below. At which position should an ammeter be placed to measure the current passing only through resistor R1?

• 1
• 2
• 3
• 4

• A

• B

• C

• D

• A

• B

• C

• D

A fault in a low-voltage circuit could result in

• DEATH

• fire

• fireworks

The purpose of a fuse is to

• melt if too much current passes through it

• switch circuits on and off

• increase resistance

• decrease voltage