how does the volume nob on a radio..............?

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increase the sound? what is the science behind it?

2007-04-30 03:38:09 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science

The volume knob is a rheostat that lets more electricity through as you increase it. It goes then to an amplifier.

2007-04-30 05:42:07 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋

In its simplest form it is a variable resistor that controls the amount of signal in the radio that passes into the output stage.

2007-04-30 04:12:28 · answer #2 · answered by Gene 7 · 0⤊ 0⤋