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This is a very hypothetical situation between two individuals in a very dry atmosphere.

He came running in rubber boots when she was combing her hair.

Around N number of electrons moved from one person to the other upon contact.

What was the voltage between them before the contact?

Assume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads.

Please assume that every electron carries about 160 zepto coulombs.

For more info on capacitors: https://en.wikipedia.org/wiki/Capacitor