AB is a uniform wire of length `L = 100 cm`. A cell of emf `V_(0) = 12` volt is connected across AB. A resistance R, cell of emf V and a milliammeter (which can show deflection in both directions] is connected to the circuit as shown. Contact C can be slid on the wire AB. Distance `AC = x`. The current `(I)` through the milliammeter is taken positive when the cell of emf `V` is discharging. A graph of `I Vs x` has been shown.
Neglect internal resistance of the cells.
(a) Find V
(b) Find R
(c) find `I` when `x = 100 cm`
