Correct option is B
Ohm’s law: V∝I or V=IR, valid at a constant temperature for a metallic conductor.
Ampere’s law is one of the fundamental equations in electromagnetism. It relates the magnetic field around a closed loop to the electric current passing through that loop.
Coulomb’s law is a fundamental principle in electrostatics that describes the force between two point charges.
Joule’s law (sometimes referred to as the Joule–Lenz law) relates the heat (thermal energy) generated by an electric current flowing through a conductor to the electrical energy expended.
