Current Electricity Part 1

Section: Physics
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Question : 15 of 100
 
Marks: +1, -0
The resistance of the meter bridge AB is given figure is 4Ω. With a cell of emf ε = 0.5 V and rheostat resistance Rh = 2 Ω the null point is obtained at some point J. When the cell is replaced by another one of emf ε = ε2 the same null point J is foundfor Rh = 6 Ω. The emf ε2 is;
[11 Jan 2019 Shift 1]
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