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what is the formula to calculate power wattage
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benjamin083

by benjamin083 at May 25, 2010

like for calculating for a speaker

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The following link has the formula that you seek.
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mathguy mathguy May 25, 2010

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Power P = I * V = R * I2 = V2 R where power P is in watts, voltage V is in volts and current I is in amperes (DC).
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KamelSadr KamelSadr May 25, 2010

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W = V x I or W = I2 x R or W = V2 / R.
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Silodawg Silodawg May 25, 2010

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W=V x I
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Jun028 Jun028 May 26, 2010

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W = V x I
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jenna063 jenna063 June 29, 2010

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W= V * I = I^2 * R or W = V^2/ R, Other basic formulae involving Power are: I = (W/ V) or V = I = ( W / R)                                             2V = ( W* R) or V = W / I                   2R =  V^2 / W or R = W / I ^2key = * = multiplication          2 = 2 under number equals squared ( i think )
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anna272 anna272 July 01, 2010

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W=V x I
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gibby. gibby. July 04, 2010

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W=V x I hope this helps
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ChromeRedCat ChromeRedCat July 28, 2010

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