If electricity is faster than the speed of sound why does it not make a sonic boom?

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If electricity is faster than the speed of sound why does it not make a sonic boom?

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Electricity make a sonic boom everytime there is a lightning strike. Movement displacement of air to supersonic speeds makes the noise.

That electricity in your wires is not usually exposed to air. When it is (a short or a arc) there is definitely a noise sometimes quite loud. Air being displaced makes the waves of sound.

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