*1.53 The diode in the circuit shown in Figure P1.53 is biased with a constant cur-

rent source I. A sinusoidal signal u, is coupled through Rs and C. Assume

that C is large so that it acts as a short circuit to the signal. (a) Show that the

sinusoidal component of the diode voltage is given by

VT

Vr+IRS

(b) If Rs = 26052, find /₁, for I = 1 mA, I = 0.1 mA, and

I = 0.01 mA./nRs

ww

V