For a given emitter current, the collector current will

Home » Analog Electronic Circuits » Analog electronics circuits miscellaneous » Question

For a given emitter current, the collector current will be higher if:

1. the recombination rate in the base region were decreased
2. the emitter region were more lightly doped
3. the minority carrier mobility in the base region were reduced
4. the base region were made wider.

Correct Option: A

As we know
I_e = I_b + I_c
so in order to make higher value of collector current, base current I_b should be minimum and which is possible when the recombination rate in the base region were decreased.
Hence alternative (A) is the correct choice.