21.1 Exercise 29

Note: Data taken from figures can be assumed to be accurate to three significant digits.

Show that if two resistors $R_{1}$ and $R_{2}$ are combined and one is much greater than the other ($R_{1} >> R_{2}$): (a) Their series resistance is very nearly equal to the greater resistance $R_{1}$. (b) Their parallel resistance is very nearly equal to smaller resistance $R_{2}$.