# AC mains pickup

Objective

Learn about the AC mains supply. Explore the phenomenon of propagation of AC through free space.

Procedure

- Connect a long wire to A3

- Take one end of the wire near the AC mains line, without touching any mains supply.

- Enable A3, and it’s analysis.

Discussion

The power line pickup is shown below, there are five cycles in 100 milliseconds. Without making any connection, how are we getting the AC voltage from the mains supply ? Why the voltage increaes when you touch the end of the wire connected to A1 by hand.