Question

the bias condition for a transistor to be used as a linear amplifier is called
select one:
o a. forward - reverse
o b. collector bias
o c. forward - forward
o d. reverse - reverse

Explanation:

To use a transistor as a linear amplifier, the base - emitter junction must be forward - biased (to allow current flow for signal injection) and the base - collector junction must be reverse - biased (to collect the majority of the carriers for amplification). Option a (forward - reverse) matches this bias condition. Option b (collector bias) is a type of biasing circuit, not the bias condition description. Option c (forward - forward) would not allow proper amplification as the base - collector junction needs to be reverse - biased. Option d (reverse - reverse) would not allow current flow in the base - emitter junction which is necessary for signal input.

Answer:

a. forward - reverse