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| Q. |
If the output power of an amplifier is 10 V, and the input power supplied to the amplifier is 0.229 V given that the DC voltage used is |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 35% |
| Answer» A. 25% | |
| Explanation: efficiency of a power amplifier is (pout- pin)/ pdc substituting the given values in the above expression, efficiency of the power amplifier is 25%. | |
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