Question:
View in English When the switch is open in lowermost loop
Last updated: 6/27/2023
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View in English When the switch is open in lowermost loop secondary circuit of a potentiometer the balance point length is 60 cm When the switch is closed with a known resistance of R 4 ohm the balance point length decreases to 40 cm Find the internal resistance of the unknown battery 40 O20 O30