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Derive the expression for power P=Vi in electrical circuit. |
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Answer» <P> Solution :The electrical power P is the RATE at which the electrical POTENTIAL energy is DELIVERED,`P=(DU)/(dt)=(d)/(dt)(V.dQ)=V(dQ)/(dt)` Since the electric current `I=(dQ)/(dt)` So the equation can be rewritten as `P=VI`. |
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