P28_032 - 32. (a) We use P = E 2 /Req , where Req = 7.00 +...

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32. (a) We use P = E 2 /R eq ,where R eq =7 . 00 Ω + (12 . 0 Ω)(4 . 00 Ω) R (12 . 0 Ω)(4 . 0Ω)+(12 . 0Ω) R +(4 . 00 Ω) R . Put P =60 . 0W and E =24 . 0 V and solve for R : R =19 . 5Ω. (b) Since P R eq , we must minimize R eq ,wh ichmeans R =0. (c) Now we must maximize R eq ,orset R = . (d) Since R eq , max =7 . 00 Ω + (12 .
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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