Flag 10 grade science> how P=VI is derived...
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how P=VI is derived

avani bhargava , 9 Years ago
Grade 10
anser 2 Answers
Saurabh Kumar

Last Activity: 9 Years ago

P = W/t = (qV)/t = I V

Arun

Last Activity: 9 Years ago

Let V=Potential Difference, E=Energy, Q=Charge, I=Current, t=Time
V=E/Q, So  E=QV.
Divide both sides by t.
E/t=QV/t
P=(Q/t)V        
P=VI (Because I=Q/t)

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