Part 4/7:
Using a multimeter, the presenter notes that previous measurements yielded about 7.5 volts. After upgrading the ground to the longer rod, the voltage increases significantly, surpassing 12 volts, with a peak around 13 volts when the hand is near the wire, creating a slight increase.
This rise indicates that a more effective ground connection directly impacts the voltage performance of the coil system. The presenter attempts to activate an LED indicator to demonstrate the increased voltage, though it’s not explicitly confirmed if the LED lights up at this voltage level.