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Physics · PYQ NEET UG 2017
हिन्दीIn a common emitter transistor amplifier, the audio signal voltage across the collector is \( 3\text{ V} \). The resistance of collector is \( 3\text{ k}\Omega \). If current gain is \( 100 \) and the base resistance is \( 2\text{ k}\Omega \), the voltage and power gain of the amplifier is
Correct answer · Option 3
\( 150\text{ and }15000 \)
Explanation
Voltage gain \( A_v = \beta \frac{R_C}{R_B} = 100 \times \frac{3}{2} = 150 \). Power gain \( A_p = \beta \times A_v = 100 \times 150 = 15000 \).
