In given figure, the potentiometer wire AB has a resistance of 5 W and – McqOptions

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1.	In given figure, the potentiometer wire AB has a resistance of 5 W and length 10 m. The balancing length AM for the emf of 0.4 V is [Pb. PET 2001]
A.	0.4 m
B.	4 m
C.	0.8 m
D.	8 m
Answer» E.

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