Current Electricity and Electrical InstrumentHard
Question
A potentiometer wire has resistance 40Ω and its length is 10m. It is connected by a resistance of 760Ω in series. If emf of battery is 2V then potential gradient is :-
Options
A.0.5 × 10-6 V/m
B.1 × 10-6 V/m
C.1 × 10-2 V/m
D.2 × 10-6 V/m
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