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WalesElectronicsQuick questions
Component 2: Audio and Power Systems
Quick questions on Audio systems: mixers, tone control and power amplifiers - WJEC A-Level Electronics
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
An amplifier has a voltage gain of 50. Express this in decibels. [2 marks]
What is q2?Show answer
State why a power amplifier, not a voltage amplifier, is used as the final stage to drive a loudspeaker. [2 marks]
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