Human Audible frequency is 20Hz-20kHz, then why can’t we hear the frequency of current which is 50Hz/ 60Hz?

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Sound is produced due to the mechanical vibration of the media. Sound waves propagate as longitudinal (compression/rarefactions) waves in gases, liquids, and solids. To hear a sound, the energy source should be capable of creating compression waves in the media. This waves upon falling on the diaphragm of the ear […]

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