For the circuit shown above, consider the input voltage to a sinusoidal signal with an amplitude of 5 volts and frequency equal to 1 kilohertz.
a) Choose standard values for all resistors so that the circuit operates as a full wave rectifier.
b) Using the resistor values chosen in part a, alter or change the circuit so that it rectifies opposite to the polarity that was achieved earlier.
c) Use PSPICE to simulate circuits in parts a and b.