Plot the frequency response for questions a, b, d in the same plot and explain the observation.

a) Implement a passive RC low pass filter with value of R and C as 1.6 k2 and 10 nF respectively. Plot the frequency response and find the pass band gain and cutoff frequency of the filter. R Vin Vout b) Repeat the above question with a load of 1002 connected at the output. Explain the observations. c) Repeat the above question with a load of 10KQ connected at the output. Explain the observations. d) Repeat question (b) with unity gain buffer connected between output of above filter and the load. Explain the observations.