Shaun o :
And the more power a voltage regulator has passing through it to feed the gpu, the higher the frequency it operates at in Hz [...]
The electrical component such as a voltage regulator module
starts to Oscillate, due to the higher Hz range it is forced to
run at, basically move back and forwards in a wave type movement
I'm not sure, but I don't think switching frequency actually changes with load.
As mentioned above, electric current creates a magnetic field around the conductors. An alternating current causes an alternating magnetic field, and this alternating field can result in vibration. Higher loads means more current means stronger fields means more vibration. There are components called inductors that are deliberately designed to create magnetic fields, and are key components in voltage regulator modules.