Stop in for a cup of coffee

Mattax said

And here's the mistake I made too many times until it sunk into my head.
Volts when there is no electricity flowing and when there is a circuit working may not be the same!
When its flowing, if there is resistance, where we measure the pressure can make a difference.[/ATTACH]

Click to expand...

That's what circuits class was all about, calculating/measuring voltage drop and current in a circuit..

Parallel circuits have constant voltage and the current varies across each circuit/branch according to its resistance...

Series circuits have constant current/amps and the voltage drops across each resistance...