In the given figure, there is a circuit of potentiometer of length AB=10m. The resistance per unit length is 
per cm. Across AB, battery of emf E and internal resistance 'r' is connected. The maximum value of emf measured by this potentiometer is:
Text Solution
Verified by ExpertsThe correct answer is:
A
Max, voltage that can be measured by this potentiometer will be equal to potential drop across AB
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