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What are the differences between self-inductance and mutual inductance?
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Self-inductance is the property of an electrical circuit that opposes any change in current flowing through it by inducing a voltage in the same circuit. This voltage opposes the change in the current by creating an opposing magnetic field. Self-inductance is measured in henrys (H).
Mutual inductance is the property of two or more electrical circuits that cause a change in the magnetic field of one circuit to induce a voltage in another circuit. Mutual inductance occurs when two coils are placed near each other and are magnetically coupled. The voltage induced in the second coil is proportional to the rate of change of current in the first coil. Mutual inductance is also measured in henrys (H).
In summary, the main difference between self-inductance and mutual inductance is that self-inductance affects only one electrical circuit, while mutual inductance affects multiple circuits.