In this case, then, if V denotes the voltage drop across the combination, we have
This idea can be applied to any number of resistors in series (not just
two).Rs = R 1 + R 2 + ...Resistors are said to be in parallel if they all share the same voltage drop, and the
total current entering the combination is split among the resistors. Imagine that a
current I enters the combination. It splits; some of the current, I 1 , would go through
R 1 , and the remainder, I 2 , would go through R 2.
What’s the Same?
Remember, in a series