In the potentiometer circuit shown below balancing length AJ

Last updated: 6/20/2023

In the potentiometer circuit shown below balancing length AJ when switch S is closed and S is open is found to be 60 cm and that 4J when S is 1 2 closed and S is open is 80 cm The unknown resistance X then is 1 A AJ 60 cm AJ 80 cm 30 2 www E 4 S O www X B