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consider a power supply with fixed emf andinternal resistance r causing current

ID: 1723855 • Letter: C

Question

consider a power supply with fixed emf andinternal resistance r causing current in a load resistanceR. In this problem, R is fixed and r isa variable. The efficiency is defined as the energy delivered tothe load divided by the energy delivered by the emf. (a) When theinternal resistance is adjusted for maximum power transfer, what isthe efficiency?
Enter anumber. 1%

(b) What should be the internal resistance for maximum possibleefficiency?
Enter an exactnumber. 2 Enter anumber. Enter an exactnumber.

Explanation / Answer

1) 50%

2) 0

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