A class A power amplifier uses ___________
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Electrical Engineering · all questionsTransistor Audio Power Amplifiers
Transistor Audio Power Amplifiers
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The maximum efficiency of transformer coupled class A power amplifier is ___________
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The most important consideration in power amplifier is ___________
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What turn ratio (Np/Ns) of transformer is required to match 4 Ω speaker to a transistor having an output impedance of 8000 Ω?
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The size of a power transistor is made considerably large to ___________
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If the power rating of a transistor is 1W and collector current is 100mA, then maximum allowable collector voltage is ___________
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The output stage of a multistage amplifier is also called ___________
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Power amplifiers handle ___________ signals compare to voltage amplifiers
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The pulsating d.c. applied to power amplifier causes ___________
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For the same a.c. power output as above, what should be the minimum power rating of transistor for class B operation?
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What will be the collector efficiency of a power amplifier having zero signal power dissipation of 5 watts and a.c. power output of 2 watts?
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A transformer coupled class A power amplifier has a load of 100 Ω on the secondary. If the turn ratio is 10:1, what is the value of load appearing on the primary?
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When a transistor is cut off___________
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Low efficiency of a power amplifier results in ___________
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If the gain versus frequency curve of a transistor amplifier is not flat, then there is distortion.
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A power amplifier has comparatively ___________ ß
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Power amplifiers generally use transformer coupling because transformer per-mits
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The driver stage usually employs___________
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