a) Consider a uniformly wound solenoid having N turns and length I as shown in Figure 4 . i. Show that the inductance, L of the solenoid is given by equation below. L=0n2A [4 marks] ii. Calculate the inductance of a solenoid containing 300 turns if the length of the solenoid is 25.0cm and its cross-sectional area is 4.00cm2=4.00104m2. [2 marks] iii. Calculate the self-induced emf in the solenoid described in part B if the current through it is decreasing at the rate of 50.0A/s. [2 marks| rigure 4