Revision sites for sparks?

[KWCFC]

Hey guys. Im an apprentice just starting college and was wondering if there are any sites on the net to help me with revision and extra practice?

Main stuff Im looking for right now is determining current in resistors, and transponding formulas.

Thanks.

 

[simo1991]

www.swindonmassive.co.uk. i got told this from my college

 

[High Tower]

It's transposing formulas that you need, just google it as it's a mathematics site you need for that