Question

Which factor should be constant in Ohms law? *

Answer 1

Explanation:

Ohm's law states that the current through a conductor is directly proportional to the voltage across the conductor. This is true provided the temperature (and other physical factors) remain constant. The constant of proportionality, R is the resistance and has units of ohms, with symbol Ω.

Answer 2

Statement of Ohm’s law

At constant temperature, the current through an ideal resistor is directly proportional to the voltage applied across the resistor.

Hence, according to the statement temperature should be constant   because the resistance of any material varies with the change in temperature. 

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