Spinning a magnet in a coil of wire generates electricity. Rotation of the magnet reverses the magnetic field, producing alternating current. Transformers change the size of alternating voltages.
What is produced when a magnet moves in a coil of wire?
Which of these is an example of a generator?
What is the name of the current which reverses direction every half turn?
Which of these will increase the size of the voltage induced in a generator?
What is mains voltage in the UK?
What do transformers change?
What is induced in the core of a transformer?
What is the name given to a transformer that increases voltage?
What voltage is electricity produced at in power stations?
How do you calculate electrical power?