Which of the Following Is True

question 7

Multiple Choice

Which of the following is true?

• A) Efficiency is the ratio of dc input power to ac output power.
• B) The power that an amplifier delivers to its equals the difference between its dc input power and the power that the circuit dissipates.
• C) Power amplifiers are typically used to drive high impedance loads.
• D) None of the above statements are true.

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