What happens to the resistance if the voltage of a device increases while the current remains constant?

When the voltage of a device increases while the current remains constant, the resistance must increase according to Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I) — expressed as R = V/I.

In this scenario, if the current does not change and the voltage increases, the calculation shows that the resistance must go up in order to maintain the relationship described by Ohm's Law. For instance, if the voltage doubles while current remains the same, the overall resistance level would also double to accommodate that increased voltage.

This principle reflects the nature of electrical components and their behavior under different electrical conditions; as voltage increases under constant current, the ability for that device to handle the increase without change to current necessitates an increase in resistance.