Define the term electric power. An electric device of resistance R when connected across an electric source of voltage V draws a current I. Derive an expression for the power in terms of resistance R and voltage V. What is the power of a device of resistance 400 Ω operating at 200 V ?

Ohm's Law, Electric Power and Its Unit | PadhAiPro

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TextOhm's LawElectric Power and Its UnitCBSE PYQ

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