8.18 Find the power dissipated in diode
D
, and the power dissipated in
R
in Figure P8.18. Use the exponential diode equation and assume
R=2k\Omega
,
V_(s)=5V,V_(D)=900mV,(q)/(K)T=(1)/(52)mV
, and
I_(0)=15nA
.