An electric circuit that includes a voltage source E with an internal resistance r, and a load resistance R is shown in the figure.

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John Doe 2021년 11월 5일

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편집: Pat Gipper 2021년 11월 22일

An electric circuit that includes a voltage source E with an internal resistance r, and a load resistance R is shown in the figure. Plot the power P as a function of R for 1<R<10 given that E = 12V and r = 2.5. Prove that maximum power transfer will occur when the internal resistance r and load resistance R are equal.

I don't really get what's going on with this problem, our professor didn't give us a figure compare to what is stated in the problem.

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Answer 1

Pat Gipper 2021년 11월 22일

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https://kr.mathworks.com/matlabcentral/answers/1579694-an-electric-circuit-that-includes-a-voltage-source-e-with-an-internal-resistance-r-and-a-load-resi#answer_837089

편집: Pat Gipper 2021년 11월 22일

Probably late for your homework assignment. Can you write the equation for the power dissipated in R leaving R as a variable? Don't you remember how to find the minimum or maximum of a function from calculus?