According to P=IV, if P is constant with increase in I (current,) then voltage has to decrease and vice a versa - which means they become inversely proportional but according to Ohm's law they are directly proportional. What role does resistance play?
According to Ohm's law V~I. But R should also be directly proportional to current as with increase in current heat increases and with heat increase resistance increase. As H=I^2RT therefore, with increase in current the resistance increases but due to resistance increase current will decrease and therefore resistance shall also decrease.
Please clear the confusion between relation of formulas.
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