The waveforms of the current flowing through a diode are shown in the figure below. Determine the RMS current ratings of the diode.
In this problem, you have not mentioned how the current varies between t1 and t2. I'm assuming it to be sinusoidal variation.
square sum of current (SSC)= integration (t=0 to T) [i^2*dt]
here, T = 5 ms = 5000 micro sec
SSC = 150^2*(t1-0) + integration(t1 to ...
This solution provides in approximately 140 words how to calculate square sum of current, mean square of current, and RMS in a diode.