Question

For the action of a CE transistor, (E = emitter, B = base, C = collector) the required CB, EB junction bias conditions are:

• A. both EB and CB junctions forward bias
• B. both EB and CB junctions reverse bias
• C. EB junction forward bias, CB junction reverse bias
• D. EB junction reverse bias, CB junction forward bias

Answer 1

The correct option is C EB junction forward bias, CB junction reverse bias

The above figure shows a common-emitter transistor configuration for a n-p-n transistor.

For a CE transistor to work, the base-emitter (EB) junction is always forward biased whereas the collector-base (CB) junction is reversed biased.