In a transistor amplifier,the voltage gain is
- Asame for all frequencies.
- Bhigh for high frequencies and low for low frequencies.
- Clow for high frequencies and high for low frequencies.
- Dlow for high and low frequencies and constant at mid frequencies.
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Similar Questions
In a transistor (common emitter configuration) the ratio of power gain to voltage gain is ($\alpha$ and $\beta$ are current ratios)
$A$ transistor is operated in common emitter configuration at $V_C = 2 \, V$ such that a change in the base current from $100 \, \mu A$ to $300 \, \mu A$ produces a change in the collector current from $10 \, mA$ to $20 \, mA$. The current gain is
MediumAIPMT 2011
View SolutionAn $npn$ transistor operates as a common emitter amplifier,with a power gain of $60\, dB$. The input circuit resistance is $100\,\Omega$ and the output load resistance is $10\, k\Omega$. The common emitter current gain $\beta$ is:
DifficultJEE MAIN 2019
View SolutionIn a transistor,if the collector current is $98 \%$ of emitter current,then the ratio of the base and collector currents is
In a $p-n-p$ transistor,the current carriers are
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