bipolar electronics

Electronic math, bipolar junction transistors?
I do not know the formulas to solve this … Determine IC (SAT) for the transistor. What is the value of IB is necessary to saturation of the product? What minimum value of Vin is necessary for saturation? Suppose VCE = 0V. Be that the answers are 500 micro amps, 3.33 micro Amps, 4.03 volts Picure are here. http://www.flickr.com/photos/22774022 @ N06/4054829352 /
Ic = 5V/10, 000 Ohms 0005A/150 Ib = UA = 3.3 Vin = (3.3 x 1.0 uA Meg Ohms) + 73V = 4.03 V. —
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