Q4. (10 points)
The equivalent resistance, $R_{eq}$ of three resistors, $R_1$, $R_2$, and $R_3$ that are connected in parallel is
given by:
$R_{eq} = \frac{1}{\frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}}$
[Diagram showing three resistors in parallel, then an equivalent resistor]
Figure 3: $R_{eq}$
calculate $R_{eq}$ if $R_1 = 200\Omega$, $R_2 = 200\Omega$, and $R_3 = 150\Omega$, where $\Omega$ is the standard unit of
electrical resistance.
