Four identical conductors connected in parallel have a resistance of 20 ohms. What is the resistance of each of them.

univerkov | September 30, 2021 | education

By condition, R1 = R2 = R3 = R4, let their value be equal to X Ohm.

Since all conductors are connected in parallel, their equivalent resistance is calculated by the formula: 1 / R = 1 / R1 + 1 / R2 + 1 / R3 + 1 / R4 = 1 / X + 1 / X + 1 / X + 1 / X = 4 / X = 1/20.

X = 4 * 20 = 80 ohms.

R1 = R2 = R3 = R4 = 80 ohms.

Answer: The resistance of each conductor is 80 ohms.

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