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Today at 6:11 PM
Physics

Answered

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3.) What is the physical quantity which
represents the basis of the functioning of a
loudspeaker?
4.) Why doesn't a direct current operate a
loudspeaker?

Answer :

pfellas pfellas

Today at 6:17 PM

3. A loudspeaker works because of the “motor effect” meaning electricity and a magnetic field cause movement.

4. A direct current will cause momentary movement in one direction only. For the speaker to produce sound you would need alternating current which makes the cone vibrate back & forth.

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