ECN Forum Forums General Topics of the Trade General Discussion Area Transformers: what determines the amp rating?

Somebody said that the secondary side has thicker wire because it's subject to a higher amp load than the primary side on a step-down transformer.

I guess if it was a step-up transformer the wire would be thinner on the secondary side because of the reduced amps because of more volts because of more secondary wraps around the core.

SMF

[This message has been edited by Spark Master Flash (edited 12-24-2005).]