What unit is used to measure mutual inductance?

Mutual inductance is a measure of the ability of one coil or circuit to induce an electromotive force (EMF) in another coil or circuit due to a changing current. The unit used to measure mutual inductance is the Henry.

One Henry is defined as the amount of mutual inductance that will induce one volt of electromotive force when the current in one circuit changes at the rate of one ampere per second. This relationship highlights the fundamental principle behind inductance, which is tied to how magnetic fields interact with electric currents. The other units mentioned—Ohm, Farad, and Coulomb—are associated with resistance, capacitance, and electric charge, respectively, and are not applicable to the measurement of mutual inductance. Therefore, the correct unit for measuring mutual inductance is indeed the Henry.