Question

Describe magnetic inductance and give examples.

Describe R-L, L-C, and L-R-C series circuits, and give examples.

PLEASE DO NOT WTITE IT BY HAND

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Answer 1

magnetic inductance:

electromagnetic induction or magnetic induction is defined as the production of opposing electromotive force(emf) across an electric conductor due to change in magnetic field.

there are two types of magnetic induction.

i) self-inductance

ii) mutual inductance.

example

1) electric generator:

When a permanent magnet is moved relative to a conductor, or vice versa, an electromotive force is created. If the wire is connected through an electrical load, current will flow, and thus electrical energy is generated, converting the mechanical energy of motion to electrical energy.

2)

electric transformer:

When the electric current in a loop of wire changes, the changing current creates a changing magnetic field. The second wire in reach of this magnetic field will experience this change in magnetic field as a change in its coupled magnetic flux, d ?_B / d t. Therefore, an electromotive force is set up in the second loop called the induced EMF.

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R-L series circuit

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R-L-C series circuit