Question:
In a common emitter transistor amplifier the resistance of collector is 3 kΩ. If the current amplification factor is 100 and the base resistance is 2 kΩ, then the power gain of the transistor is
In a common emitter transistor amplifier the resistance of collector is 3 kΩ. If the current amplification factor is 100 and the base resistance is 2 kΩ, then the power gain of the transistor is
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For transistor amplifiers, the power gain can be calculated using the current amplification factor and the ratio of collector resistance to base resistance.
Updated On: Jun 6, 2025
- 150
- 10000
- 1500
- 15000
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The Correct Option is C
Solution and Explanation
The power gain is given by:
$$ P_{gain} = \beta \times \frac{R_c}{R_b} $$
Substituting the given values:
$$ P_{gain} = 100 \times \frac{3000}{2000} = 1500 $$
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