Q. Typical common-base current gain in a well-designed bipolar transistor is very close to _

A
Infinity
B
Unity
C
Zero
D
None of the above
Solution:

The current gain for the common-base configuration is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant. Typical common-base current gain in a well-designed bipolar transistor is very close to unity.

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