The following measurements are taken on particularjunction diodes for which V is the terminal voltage and I isthe diode current. For each diode, estimate values of IS andthe terminal voltage at 10% of the measured current.(a) V = 0.700 V at I = 1.00 A(b) V = 0.650 V at I = 1.00 mA(c) V = 0.650 V at I = 10 μA(d) V = 0.700 V at I = 10 mA

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.