Self and Mutual Induction Self-induction: Imagine a circular loop of wire. If you pick up a piece of wire and move it from point A to point B, and then b...
Self-induction:
Imagine a circular loop of wire. If you pick up a piece of wire and move it from point A to point B, and then back to point A, it will always return to point A. This means the wire will always self-induce an electric current.
Mutual induction:
Imagine two coils of wire connected by a coil of wire. If you turn on the main coil, and then turn on the second coil, the two coils will induce an electric current in each other. This means that the current in the second coil is affected by the current in the first coil.
Key differences:
Self-induction: The object itself induces an electric current.
Mutual induction: Two objects induce an electric current in each other.
Examples:
A bar of metal dropped into a pool of water will induce an electric current in a metal spoon placed in the water.
Two coils of wire connected by a coil of wire will induce an electric current in each other when turned on.
When you turn on a light switch, the current in the circuit will induce a current in the light bulb