Question

In a transistor (common emitter configuration) the ratio of power gain to voltage gain is (α and β are current ratios) ______.

Options

• \[\frac {β}{α}\]

• αβ

• α

• β

Answer 1

In a transistor (common emitter configuration) the ratio of power gain to voltage gain is (α and β are current ratios) β.

Explanation:

Power gain = Voltage gain × Current gain

\[\therefore\] \[\frac {\text {Power Gain}}{\text {Voltage Gain}}\] = Current gain = β