Active region:

In this region collector diode is reverse biased and emitter diode is forward biased. Consider first that emitter current is zero. Then collector current is small and equals reverse saturation current I_CO of collector junction considered as a diode.

If forward current I_B is increased, then the fraction of I_E that is α_dcI_E will reach the collector. In active region, the collector current is independent of collector voltage and depends only on the emitter current. Because  adc  is, below one but almost equal to unity, the magnitude of the collector current is a bit less that of emitter current. The collector current is constant and work as a current source.

The collector current increases slightly with voltage. This is because of early effect. At higher voltage collector gathers in a few more electrons. This reduces base current. The difference is so small, that it is neglected usually. If the collector voltage is increased, then the space charge width increases; this decreased effective base width. Then there is less chance for the recombination within the base region.

Email based Electronics Devices and circuits assignment help - homework help at Expertsmind

Are you searching Electronics Engineering assignment help expert for help with Active region questions?  Active region topic is not easier to learn without any external help?  We at www.expertsmind.com offers free lecture notes for Electronics Devices and circuits assignment help and Electronics Devices and circuits homework help. Live tutors are available 24x7 hours for helping students in their Active region related problems. We provide step by step Active region question's answers with 100% plagiarism free content. We prepare quality content and notes for Active region topic under Electronics Devices and circuits theory and study material. These are avail for subscribed users and they can get advantages anytime.

Why Expertsmind for assignment help

1. Higher degree holder and experienced experts network
2. Punctuality and responsibility of work
3. Quality solution with 100% plagiarism free answers
4. Time on Delivery
5. Privacy of information and details
6. Excellence in solving electronics engineering questions in excels and word format.
7. Best tutoring assistance 24x7 hours