A 1-ohm resistor was connected in parallel to a 10 ohm resistor. How has the total resistance of the circuit changed?

univerkov | December 18, 2020 | education

Given:
R1 = 10 Ohm
R2 = 1 Ohm
R =?
Decision:
R = (R1 * R2) / (R1 + R2);
R = (10 Ohm * 1 Ohm) / (10 Ohm + 1m) = 10 Ohm / 11 Ohm ≈ 0.9 Ohm
Answer: R≈ 0.9 ohm
The resistance is now 0.9 ohm

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