Connecting Batteries: Serial/Parallel/Serial and Parallel—DC Voltages, Current, and Wattage on Each
Voltages in series circuits and parallel circuits
Formula for 2 voltages in Parallel?
That means that all of the current flowing into the node must also flow out of the node again, all the charges going into the node must also come out of the node.
In an earlier tutorial, I have explained about the with an example.