domestic uses and safety (topic 2) Flashcards
1
Q
(3)
A
- bigger volume takes more time to boil
- so more energy transferred
- and this costs more money
2
Q
A
- there is a magnetic field (around the magnet)
- (this magnetic field) changes / moves
- and cuts through coil
- so a p.d. induced across coil
- the coil forms a complete circuit
- so a current (is induced)
3
Q
what is meant by pd
A
the difference in the amount of energy that charge carriers have between two points in a circuit
4
Q
A
- ammeter reading does not change
- zero
- greater than before
- same as originally but in the opposite direction
5
Q
(2)
A
- he may receive an electric shock
- if he touches the live wire
6
Q
(2)
A
- cost is higher
- more energy is used (per second)
