electricity quiz

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.

The total resistance in this circuit is 

• 100 ohms
• 450 ohms
• 400 ohms
• 30 ohms

The total current through this circuit is

• 0.02 amps
• 0.09 amps
• 50 amps
• 9 amps

The voltage across the 300 ohm resistor is

• 6 V

• 9 V

• 2 V

• 30 V

As the resistance of a circuit increases, the current will...

• increase
• decrease
• stay the same

What is wrong in this picture of a plug?

• The Earth and the Live have been swapped

• The Live and the Neutral have been swapped

• The Neutral and the Earth have been swapped

• The Earth is the wrong colour

• the fuse has blown

If the earth wire is damaged...

• The user could get electrocuted if the live wire is also damaged

• The appliance won't work

• The appliance will overheat

• The appliance will be less environmentally friendly

• The user will immediately get electrocuted

What colour is the neutral wire in a three pin plug

• Brown

• Blue

• Green and yellow

• White

• Black

What property of fuse wire enables it to act as a safety feature?

• Boiling point

• strength

• Melting point

• Texture

• flexibility

This is the circuit symbol of a

• resistor

• battery

• fuse

• switch

• an earth wire