NCERT Exercise 3.12 - Current Electricity
Question: In a potentiometer arrangement, a cell of emf 1.25 V gives a balance point at 35.0 cm length of the wire. If the cell is replaced by another cell and the balance point shifts to 63.0 cm, what is the emf of the second cell?
Answer: EMF of the second cell = **2.25 V**.
Full step-by-step NCERT solution with diagrams on Something by Zero.