The current gain of a transistor in a common base arrangement is `0.95`. Find the voltage gain and power gain if the load resistance of output circuit is `400kOmega` and the input resistance is `200Omega`.
Text Solution
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Here, `alpha=0.95, R_(0)=400xx10^(3)Omega`, `R_(i)=200Omega` As voltage gain `=alphaR_(o)/R_(i)=0.95xx(400xx10^(3))/200` `=1900` Power gain= voltage gain xx current gain `= 1900xx0.95=1805`
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