Question

If the DC base-emitter junction voltage, Vbe, for an NPN BJT in the forward-active region is equal to 654 mV, and the DC collector-to-emitter voltage is Vce = 11.7 V, then what is the collector current flowing in this BJT, Ic, in milliamps? Assume that the saturation current for this BJT, Is, is equal to 32 fA. (Note that 1 fA = 1 femtoamp = 1 x 10^-15 A.) Include the effects of base-width modulation, and use an Early Voltage of 38 V. Also assume that the thermal voltage is equal to Vt = kt/q = 26mV. Since Ic is very sensitive to small changes in Vbe, be sure to use Vbe to the nearest millivolt when calculating your answer!

Answer 1