Questions
The length of a potentiometer wire is l. A cell of emf E is balanced at a length l/3 from the positive end of the wire. If the length of the wire is increases by . At what distance will the same cell give a balanced point
detailed solution
Correct option is B
e=iRPlx =ERPRPll3 = Ell3 second time e =E3l2x solving x=l/2Talk to our academic expert!
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A cell of resistance and emf 10 volt is connected to a uniform wire of length 500 cm and resistance 3 ohm. The potential gradient in the wire is
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