Questions
In a potentio meter experiment, the balancing length with a cell is at a length of 240 cm. On shunting the cell with a resistance of 2 , the balancing length becomes 120cm. The internal resistance of the cell is:
detailed solution
Correct option is B
r=RL1−L2L2=2120120=2ΩTalk to our academic expert!
Similar Questions
In the network shown, when switch S is open balancing length AN1 = 60 cm and when the switch S is closed, balancing length AN2 = 50 cm. then the value of r is
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