A zener diode circuit is such that the output corresponding to an input v s(t)=cos(π*t) is a clipped sinusoid Use MATLAB to generate the input and the output signals and plot them in the same plot for 0 ≤ t ≤4 at time intervals of 0.001.
(a) Is this system linear? Compare the output obtained from v s(t) with that obtained from 0.3 v s(t) (b) Is the system time invariant? Explain.