step by step hand written explanation required

Problem 2 N N2 + VDic iR C = R Vo 600 0 080 2002000 V1 V2 + V s + USW Transformer Vs=20V; N1/N2= 2; Lm= 400 UH; R= 4 Ohms; f=50kHz; Vo= 5 V; C= 200uF; the diode is not ideal and it has a voltage drop of 2V; 1) Identify the converter type. 2) Draw the waveforms for ILM Is and lo with the correct values and proper labels. 3) Determine the average, maximum and minimum values for the current in Lm. 4) What is the duty cycle D