The diode in the clipper circuit of Figure 4 has piecewise linear parameters Vy-0.7 V and r 02 Plot the output versus time if (a) The Sine wave, shown in Figure 4(b), is applied. (b) The squre wave, shown in Figure 4(c), is applied, 1 +40 40 R=1000 www (a) Figure 4 10 V V 20 V -20 V I