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**Patty****Guest**

If V=IR and P=VI Write P in terms of I and R?

P = I²R

is it really that easy or is the question really asking me to do something i dont know about?

**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

No, it's that easy. Well done.

Why did the vector cross the road?

It wanted to be normal.

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,529

Also (but not asked for): P = V² / R

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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