Hi
I need some help on two max power transfer questions.
This is my approach to the first one.
\(R_{L}= 8 \Omega\) - because max power occurs when \(R_{TH}\) = \(R_{L}\)
Then I found the max power transfered in (b) by using
\(P_{L,Max} = \frac{v_{L}^{2}}{4R_{TH}}\)
\(V_{L} = IR = 2A*8\Omega = 16v\)
\(R_{TH} = 16//8//16 = 4\Omega \)
\(P_{L,Max} = \frac{16^{2}}{16} = 16 \)
I'm confused when they give you \(R_{L}\) and need to find the max power. I'm assuming you have to use \(R_{L}\) to find the max power.
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For the second problem:
\(R_{TH} = 10//10+10 = 15\Omega\)
\(V = 20v\)
\(P = \frac{20^{2}}{4*15} = 6.67 W\)
But that is not the answer according answer sheet.
I need some help on two max power transfer questions.
This is my approach to the first one.
\(R_{L}= 8 \Omega\) - because max power occurs when \(R_{TH}\) = \(R_{L}\)
Then I found the max power transfered in (b) by using
\(P_{L,Max} = \frac{v_{L}^{2}}{4R_{TH}}\)
\(V_{L} = IR = 2A*8\Omega = 16v\)
\(R_{TH} = 16//8//16 = 4\Omega \)
\(P_{L,Max} = \frac{16^{2}}{16} = 16 \)
I'm confused when they give you \(R_{L}\) and need to find the max power. I'm assuming you have to use \(R_{L}\) to find the max power.
-----------------------------------------------------------------------
For the second problem:
\(R_{TH} = 10//10+10 = 15\Omega\)
\(V = 20v\)
\(P = \frac{20^{2}}{4*15} = 6.67 W\)
But that is not the answer according answer sheet.
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