Question

working principle of loudspeaker​

Answer 1

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• To make sound, a loudspeaker is driven by modulated electric current (produced by an amplifier) that passes through a "speaker coil" which then (through inductance) creates a magnetic field around the coil, creating a magnetic field.
• The moving coil loudspeaker uses the magnetic effect generated by a flowing current as the basis of its operation.
• When a current flows in a wire, a magnetic field appears around it.
• When the wire is wound into a coil, the effect is increased.

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