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?

Back

10p

Card 3

Front

Batteries produce DC electricity. What does DC stand for?

Back

Preview of the front of card 3

Card 4

Front

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

Back

Preview of the front of card 4

Card 5

Front

In which direction does conventional current flow?

Back

Preview of the front of card 5
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