Questions
Fig. shows a potentiometer circuit to determine
the unknown e.m.f. E. When the jockey makes contact at point A, the deflection is towards left. On moving the jockey from A to B, the deflection always remains towards left but goes on decreasing. This means that
detailed solution
Correct option is D
The unknown e.m.f. is greater than the battery e.m.f.Talk to our academic expert!
Similar Questions
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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