## Question

###### Chapter 27, Problem 011 In the figure circuit section AB absorbs energy at a rate of...

Chapter 27, Problem 011 In the figure circuit section AB absorbs energy at a rate of 71 W when current i = 1.4 A through it is in the indicated direction. Resistance R = 2.0 92. (a) What is the potential difference between A and B? Emf device X lacks internal resistance. (b) What is its emf? w (a) Number Units Units (b) Number Click if you would like to Show Work for this question: Open Show Work

## Answers

Sol: Giuen Power in section AB, P=710 Current, i =1.4A R=2.on ŷ met НААДДЯГ @ Potential diff: Vab =) device x has negligible resistence so, only resistance in section AB is R, 2 so, P = vo => 71 = (van)." Vab = 11.91 Woct] M 6 In section AB variR +E=4 Va-V6= E-ir llog1 = E + 2x104 TE= 14.71 volt

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