Increase/decrease the magnitude of the EMF and the resistors by clicking
on the upper/lower part of the object. The values of the resistors range
from 1 to 10 ohms. And the value of the EMF ranges from -10 to +10 Volts.
Erase or replace the resistors by selecting the "Eraser" or the wire from
the menu.
The total resistance is determined as the sum of the resistors in series, thus