Here is a more detailed explanation of the process:
1. When you sing, your vocal cords vibrate and produce sound waves.
2. The sound waves travel through the air and strike the diaphragm of the microphone.
3. The diaphragm of the microphone vibrates in response to the sound waves.
4. The vibrations of the diaphragm cause the electric current in the microphone to change.
5. The frequency of the electric current is proportional to the frequency of the sound waves.
6. The amplitude of the electric current is proportional to the amplitude of the sound waves.
In other words, the electric current in a microphone is a representation of the sound waves that are being produced.