Asked by Anonymous
1. The power P delivered to a variable resistor R by a battery of emf V and a constant internal resistance r is given by
P= V^2R / (R + r)^2
Find dP/dR and hence the value of R when the power delivered is a maximum.
Answers
Answered by
Steve
using the quotient rule,
dP/dR = -V^2(R-r)/(R+r)^3
so, max power when R=r
I think you'll find this discussed somewhere in your text.
dP/dR = -V^2(R-r)/(R+r)^3
so, max power when R=r
I think you'll find this discussed somewhere in your text.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.