generating electricity Flashcards
1
Q
what do you need to induce a voltage
A
you need movement but it does not matter what is moving
2
Q
how to make the induced voltage bigger
A
- faster movement
- use stronger magnet
- more coils of wire
3
Q
what is the simplest example of a generator
A
a bicycle dynamo
4
Q
why do power stations use electromagnets instead of permanent magnets for their generators
A
because electromagnets produce a much stronger magnetic field so the induce voltage will be bigger
