Step 1: Calculate the total resistance of the circuit using the formula for parallel resistors:
\[ \frac{1}{R_{total}} = \frac{1}{60} + \frac{1}{30} + \frac{1}{20} \]
\[ \frac{1}{R_{total}} = \frac{1}{60} + \frac{2}{60} + \frac{3}{60} \]
\[ \frac{1}{R_{total}}
Show more…