Please answer this and show your solutions on paper.I will give you a very good feedback.on paper please :(

. A steady current of 3.5 A generates a flux of 2.5 x 105 Wb in a coil with 500 turns. Compute the self-inductance of the coil. .A at coil with 50 loops of wire has a radius of 15 mm. The coil is places in a magnetic eld of 0.40 T to enable a maximum ux to go through it. it later rotated in 0.04 s to a position that no flux can go through. What is the average EMF induced between the terminals of the coil? .An induced EMF of HIV exists in a coil when the current coil changes at a rate of 40 11/5. What is the self-inductance of the coil? .A solenoid has an iron core that is 60 cm long and has a cross- sectional area of 3.0 mg. Wire is wound around it 10 times per cm of its length. Compute the self-inductance of the solenoid, considering 500 to be the relative permeability of iron