Ohm's law is true
A)for gases at low temperature
B)for metallic conductor
C)for electrolytes when current passes through them
D)for diode when current flows

Question

Quizplus · Accepted Answer

Ohm's law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points, is primarily applicable to metallic conductors. This is because metals have a relatively constant resistance over a wide range of operating conditions, making them obey Ohm's law closely. Other options, such as gases at low temperature, electrolytes, and diodes, do not consistently obey Ohm's law across their operating conditions.

Ohm's Law Is True