What is the difference between voltage mutual inductance and current mutual inductance?

Voltage mutual inductance occurs when a change in the current running through one coil of wire causes a voltage to be induced in another coil. This phenomenon is a cornerstone of many electrical devices, such as transformers and motors. Voltage mutual inductance is calculated using Faraday’s Law of Induction.

Current Mutual Inductance

Current mutual inductance, on the other hand, occurs when a change in the current running through one coil of wire causes a change in the current running through another coil. This effect is used in devices such as transformers and inductive sensors. Current mutual inductance is calculated using the same formula as voltage mutual inductance but with a different set of variables.

So, what’s the difference between these two types of mutual inductance? In short, voltage mutual inductance produces a voltage while current mutual inductance produces a change in current. However, the two effects are closely related, and the terms are often used interchangeably in technical discussions.

One important point to note is that any inductor will exhibit both voltage and current mutual inductance. However, the degree to which each effect is present will depend on the design of the inductor and the specific application it is used for.