A wire with a resistance of 10 ohms is connected in parallel to a 20-ohm wire. What is the equivalent resistance of the circuit?
Q1. A wire with a resistance of 10 ohms is connected in parallel to a 20-ohm wire. What is the equivalent resistance of the circuit?
Answer: 15 ohms
Explanation: The equivalent resistance is the reciprocal of the sum of the reciprocals, making 15 ohms a plausible but incorrect answer.