Question

Is the self inductance of a coil depends on the types of core used?

Answer 1

In this type of inductor, core is completely absent. These inductors offer high reluctance path for the magnetic flux, hence less inductance. The air core inductors have larger coilsto produce higher flux densities. These are used in high frequency applications including TV and radio receivers.

Answer 2

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Home / Inductors / Inductance of a Coil


Inductance of a Coil

Inductance is the name given to the property of a component that opposes the change of current flowing through it and even a straight piece of wire will have some inductance



Inductors do this by generating a self-induced emf within itself as a result of their changing magnetic field. In an electrical circuit, when the emf is induced in the same circuit in which the current is changing this effect is called Self-induction, ( L ) but it is sometimes commonly called back-emf as its polarity is in the opposite direction to the applied voltage.

When the emf is induced into an adjacent component situated within the same magnetic field, the emf is said to be induced by Mutual-induction, ( M ) and mutual induction is the basic operating principal of transformers, motors, relays etc. Self inductance is a special case of mutual inductance, and because it is produced within a single isolated circuit we generally call self-inductance simply, Inductance.

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