Question

State the conditions under which ohm’s law holds good

Answer 1

Answer:

Thus Ohm's Law is the relation between current, voltage and resistance. Where R (resistance) is the constant or proportionality. Ohm's Law is applicable only if all the physical conditions for example temperature, material or dimensions of the wire remain constant.

Answer 2

The conditions under which ohm’s law holds good are:

(i) All the physical conditions such as temperature remain constant.

(ii) All the physical parameters such as the material of the conductor remain the same.

Explanation:

• Ohm's law gives the relation between the current ($I$) flowing through a conductor and the potential difference ($V$) across its ends.
• It states the potential difference ($V$) across the ends of the conductor is directly proportional to the current ($I$) flowing through the conductor at a constant temperature and the same physical parameters.
• It is represented in the form of equation as:

       $\[V = IR\]$, here, R is the constant of proportionality called resistance.