Part 5/7:
During the experiment, the presenter notices that manipulating the coil length affects the voltage readings. When they place their hand around the coil wire, the voltage spikes, suggesting that the coil's length or configuration influences the electromagnetic interactions.
To improve the system further, the presenter considers adding another coil segment, believing that extending the coil might enhance the voltage output. This adjustment aims to optimize the electromagnetic induction process, potentially further increasing the voltage generated.