practical electricity Flashcards
1
Q
e.g. explain what it means when an appliance is rated 2400W, 240V
A
when an operating voltage of 240V is applied across the appliance, the appliance converts electrical energy into (type of energy) at a rate of 2400J per second
2
Q
renewable energy
A
energy from sources that can be replenished naturally
3
Q
non-renewable energy
A
energy from natural resources that cannot be replenished at a sustainable rate
4
Q
circuit breakers
A
safety devices that can switch off the electrical supply in a circuit when large currents flow through them
5
Q
fuse
A
a safety device that is added to an electrical circuit to prevent excessive current flow
