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What is the value of resistance RL in the circuit shown in the figure to deliver maximum power from the source to load?

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UPSC ESE (Prelims) Electronics and Telecommunication Engineering 19 Feb 2023 Official Paper
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  1. 22.83 Ω
  2. 20.83 Ω
  3. 18.83 Ω
  4. 16.83 Ω

Answer (Detailed Solution Below)

Option 2 : 20.83 Ω
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Detailed Solution

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Calculation:

 

 

From the above circuit, 10 || 30 & 20 || 40 Ω

⇒ 7.5 + 13.33 = 20.83 Ω

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