Define electric potential give its S.I. unit. State Ohm's law with suitable graph with circuit diagram of Ammeter, Voltmeter, Rheostat,wire connection, key switch,battery?
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The SI unit of electric potential is the volt, which is defined as a joule per coulomb..
Electric potential, the amount of work needed to move a unit charge from a reference point to a specific point against an electric field
Ohm's law may be expressed mathematically as V/I = R. That the resistance, or the ratio of voltage to current, for all or part of an electric circuit at a fixed temperature is generally constant had been established by 1827 as a result of the investigations of the German physicist Georg Simon Ohm.
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