Question

(a) Name the law which relates the current in a conductor and the potential

difference across it?

(b) State the above law and express it mathematically​

Answer 1

Answer:

a)ohms law

Explanation:

Ohm’s law states ‘The current flowing through a conductor is directly proportional to the potential difference V across its ends, provided the temperature and physical conditions of the conductor remain the same’.

If I is the current flowing through a conductor and V is the potential difference (or voltage) across its ends, the according to Ohm's law:

begin mathsize 14px style straight I proportional to straight V straight V over straight I equals constant equals straight R straight V equals IR end style

begin mathsize 14px style straight V over straight R equals straight I end style

'R' is constant for a given metallic wire at a given temperature, and this constant is named resistance. It is the property of a conductor to resist the flow of charges through it.

Its SI unit is ohm which is denoted as begin mathsize 14px style straight capital omega end style.