CUET Preparation Today
The current gain for a transistor working as common base amplifier is 0.96. If the emitter current is 7.2 mA, then the base current is: |
0.29 mA 0.35 mA 0.39 mA 0.43 mA |
0.29 mA |
$\text{Current Gain is}\alpha = \frac{\Delta I_C}{\Delta I_E} = 0.96$ $ \Delta I_C = 0.96\times 7.2mA = 6.91 mA$ $ \Delta I_B = 7.20 mA - 6.91 mA = 0.29 mA$ |
