Physics
(a) Name and state the law which relates the potential difference and current in a conductor.
(b) What is the necessary condition for a conductor to obey the law named above in part (a)?
Current Electricity
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Answer
(a) The law which relates the potential difference and current in a conductor is known as Ohm's law.
Ohm's law states that the current flowing through the conductor is directly proportional to the potential difference across it's ends provided that the physical conditions and the temperature of the conductor remain constant.
(b) The necessary condition for a conductor to obey Ohm's law is that the physical conditions and the temperature should remain constant.
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