CUET Preparation Today
What is the voltage gain in a common emitter amplifier, where input resistance is 3 Ω and load resistance 24 Ω ? Take β = 0.6. |
8.4 4.8 2.4 1.2 |
4.8 |
Given that, $R_L = 24 Ω$ and $R_I = 3Ω$ ∴ Resistance gain = $\frac{R_L}{R_I}-\frac{24}{3}=8$ ∴ Voltage gain = current gain × resistance gain = 0.6 × 8 = 4.8 |
