Analog Electronics - Section 1 (3)
Analog Electronics - Section 1
| 17. | In figure v1 = 8 V and v2 = 8 V. Which diode will conduct? |
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Answer: Option C Explanation: Both D1 and D2 are forward biased. |
| 18. | Consider the following statements : A clamper circuit 1.adds or subtracts a dc voltage to a waveform 2.does not change the waveform 3.amplifiers the waveform Which are correct? |
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Answer: Option A Explanation: Clamper does not amplify the waveform. Hence 1 and 2 are correct. |
IC, 
| 20. | In figure what is value of IC if βdc = 100. Neglect VBE |
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Answer: Option C Explanation: Since IB = 100 μA, IC = βIB = 10 mA. |
| 21. | The self bias provides |
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Answer: Option A Explanation: Stable Q point is the advantage of self bias circuit. |
| 22. | In figure ID = 4 mA. Then VS = |
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Answer: Option B Explanation: VS = ISRS = 4 x 10-3 x 1.1 x 103 = 4.4 V. |
| 24. | Maximum efficiency of class B power amplifier is 50%. |
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Answer: Option B Explanation: Maximum efficiency for class B-operation can be 78.5% . |