In this version of the formula triangle, what does "i" stand for?
What is the symbol used for current in a circuit?
A washing machine has a potential difference of 240V across it.
To protect it from surges in current that might damage the motor, it needs a fuse.
the resistance of the mashing machine is 22 Ω.
What would be the best fuse to choose for this applience?
A fuse has 12A of current passing through it.
It has 240V of potential difference across it.
What is the resistance of the fuse?
(remember: current x resistance = potential difference )