# Physics revision P2.3 Electric current

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• Created by: melisa
• Created on: 18-09-13 22:57
How many kWh of electricity are used when a 2kW fire is on for 30 minutes?
1
1 of 7
A 0.25kW computer is on for 4 hours (1kWh costs 10p). How much does this cost?
10p
2 of 7
Batteries produce DC electricity. What does DC stand for?
DC stands for direct current.
3 of 7
Which of the following is not needed for a current to flow?
A switch is not needed for a current to flow.
4 of 7
In which direction does conventional current flow?
Conventional current flows from positive to negative terminals.
5 of 7
Which of the following would not conduct electricity?
Plastic is a non-metal and will not conduct electricity.
6 of 7
What type of current is mains electricity?
Mains electricity is AC.
7 of 7

## Other cards in this set

### Card 2

#### Front

A 0.25kW computer is on for 4 hours (1kWh costs 10p). How much does this cost?

10p

### Card 3

#### Front

Batteries produce DC electricity. What does DC stand for?

### Card 4

#### Front

Which of the following is not needed for a current to flow?

### Card 5

#### Front

In which direction does conventional current flow?