3 The graph in the figure shows the varkation of the electre

3. The graph in the figure shows the varkation of the electre potential V (ueasured in volts) se n of the radial direction r (meusured in meters). For whicl roge or value of r is the magnitaldle electric field the largest? ) ae a fu nitude of the r(in) A. from r=0 m to r= 3 m B. from r 3 m to r= 4 m C, from r=4mto rx6m D, at r.3m

Solution

E=area of graph of electric potential and r

E is maximum for range of r= 4m to 6m

as area for that range is 8

others are less than that