What does PNPN stand for?

PNPN stands for "Positive-Negative-Positive-Negative"

How to abbreviate "Positive-Negative-Positive-Negative"?

"Positive-Negative-Positive-Negative" can be abbreviated as PNPN

What is the meaning of PNPN abbreviation?

The meaning of PNPN abbreviation is "Positive-Negative-Positive-Negative"

What does PNPN mean?

PNPN as abbreviation means "Positive-Negative-Positive-Negative"