Calculate the efficiency of a class B amplifier for a supply voltage of VCC = 20 V with peak output voltage of VL(p) = 18 V. Assume RL = 16 Ω.

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Q. Calculate the efficiency of a class B amplifier for a supply voltage of VCC = 20 V with peak output voltage of VL(p) = 18 V. Assume RL = 16 Ω.

(A) 78.54%
(B) 75%
(C) 70.69%
(D) 50%

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✅ Correct Answer: (C) 70.69%

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