A close inspection of an electric circuit reveals that a 500-ΩΩ resistor was inadvertently soldered in the place where a 360-ΩΩ resistor is needed.
Part A
How can this be fixed without removing anything from the existing circuit?
Connect another resistor in series with the 500-ΩΩ resistor so that the equivalent resistance is the desired 360-ΩΩ .Connect another resistor in parallel with the 500-ΩΩ resistor so that the equivalent resistance is the desired 360-ΩΩ .This cannot be fixed.