A contact actuator is shown in the figure where w= d = 1 cm, N = 200 turns, R= 20, E = 20 V. Leakage flux and fringing are ignored. Initial position of the plunger (moving part) is taken such that x = 5 mm. Later on, plunger moves in the direction of the induced force very very slowly until x becomes 1 mm. Take = 4 x 10-7 H/m. . Determine the A - i characteristic of the system. 2w RE 0 W N 2w