Q.

From the given circuit, using silicon BJT, what is the value of the saturation collector current?

A. 5 ma
B. 5.36 ma
C. 5.45 ma
D. 10.9 ma
Answer» B. 5.36 ma
Explanation: to obtain an approximate answer, under saturation the bjt is on and hence acts like a short circuit. however, ideally a drop exists for the transistor which is a fixed value. for an exact answer, if the bjt is a silicon transistor, then drop vce = 0.2v and current is 12-0.2/2.2=5.36 ma.
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