What's that formula....

[Buck 5,000+ posts]

For calculating wattage, based off voltage and ohm load.

Is it voltage= the square root of wattage x ohms?

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[dragonrage 10+ year member]

P=v^2/r

p=iv

p=i^2*r

Edit: All of those letters should be capital, but the board was an ******* and changed them to lowercase.

 

[Heeltoeclutch 10+ year member]

P=v^2/r p=iv

p=i^2*r

Edit: All of those letters should be capital, but the board was an ******* and changed them to lowercase.

It does that to me sometimes... I can't figure out why sometimes if i try over and over again it'll do it right.

 

[whitedragon551 5,000+ posts]

For calculating wattage, based off voltage and ohm load.
Is it voltage= the square root of wattage x ohms?

Looks right to me.