Final answer:
Self-induction and mutual induction are phenomena in physics. Self-induction refers to the induction of a voltage in the same coil due to a changing current, while mutual induction refers to the induction of a voltage in a neighboring coil due to a changing current in another coil.
Step-by-step explanation:
Self-Induction:
Self-induction occurs when a changing electric current in a coil of wire induces an electromotive force (EMF) or voltage in the same coil. This phenomenon is explained by Faraday's law of electromagnetic induction. An example of self-induction is when an electric coil connected to a battery is suddenly disconnected, causing a temporary surge of voltage in the coil.
Mutual Induction:
Mutual induction occurs when a changing current in one coil induces an EMF or voltage in a neighboring coil. This is the principle behind transformers. For example, when a varying current flows through the primary coil of a transformer, it induces a voltage in the secondary coil, enabling transmission of electrical energy at different voltage levels.
Learn more about Electromagnetic induction