Calculating surface area

[punisher001]

When calculating surface area do i need to double it for front and back of item.
eg: one side of the brass sheet is 10" x 10" = 100sq"
thats for one side so if i am using a tank should i be calculating my amp power at 200sq"
thanks

[fly]

Re: Calculating surface area

Yes you should, unless you mask one side off so that it doesn't conduct electricity...

[punisher001]

Re: Calculating surface area

Thanks
and what would be the best thing to mask it off with?
regards

[fly]

Re: Calculating surface area

If the piece is not big I would use electric tape or if its big then paint it with a cheap paint....