For transistors
A)the dc and ac current gains are the same.
B)amplification of signal voltage is not possible.
C)the dc and ac current gains are usually different.
D)the dc current gain is zero.

Question

Quizplus · Accepted Answer

The DC current gain (beta, β) of a transistor is the ratio of the DC output current to the DC input current in its active region. The AC current gain, on the other hand, refers to the ratio of the change in output current to the change in input current due to an AC signal, and it can vary with signal frequency, biasing conditions, and the operating point of the transistor. Therefore, the DC and AC current gains are usually different because they are influenced by different factors and conditions.

For Transistors