Question

When the collector junction is reverse biased and emitter junction is forward biased, the operating region of the transistor is called_________

(a) inverted region

(b) active region

(c) cut off region

(d) cut in region

I had been asked this question in a national level competition.

Question is taken from The CB Characteristics in division Transistor Characteristics of Electronic Devices & Circuits

Answer 1

The correct choice is (b) active region

Best explanation: In the active region, for small values of base current, the effect of collector voltage over collector current is small while for large base currents this effect increases. The shape of characteristic here is same as that of CB transistors.