Question

When is the transistor said to be saturated?

(a) when VCE is very low

(b) when VCE is very high

(c) when VBE is very low

(d) when VBE is very high

I had been asked this question in homework.

This intriguing question originated from The Common Collector Configuration in section Transistor Characteristics of Electronic Devices & Circuits

Answer 1

Right answer is (a) when VCE is very low

Explanation: When VCE is very low, the transistor said to be saturated and it operates in saturated region of characteristic. The change in base current IB does not produce a corresponding change in the collector voltage IC.