27. (a) Write two loop rule equations and one junc- tion rule equation for the circuit in Figure P19.27. (b) Use these equations to determine the current in each branch of the circuit for the case in which R₁ = 50, R₂ = 300, R₂ = 152, and ε = 120 V. 28. (a) Write Kirchhoff's loop rule for the circuit shown in Figure P19.28 for the case in which E₁ = 20 V, E₂ = 8 V, R₁ = 30 2. R₂ = 200. FIGURE P19.27 R₁ www R₂ www

27. (a) Write two loop rule equations and one junc- tion rule equation for the circuit in Figure P19.27. (b) Use these equations to determine the current in each branch of the circuit for the case in which R₁ = 50, R₂ = 300, R₂ = 152, and ε = 120 V. 28. (a) Write Kirchhoff's loop rule for the circuit shown in Figure P19.28 for the case in which E₁ = 20 V, E₂ = 8 V, R₁ = 30 2. R₂ = 200. FIGURE P19.27 R₁ www R₂ www

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

27. * (a) Write two loop rule equations and one junc-
tion rule equation for the circuit in Figure P19.27.
(b) Use these equations to determine the current
in each branch of the circuit for the case in which
R₁ = 50, R₂ = 30 , R₂ = 15 N, and
ε = 120 V.
28. (a) Write Kirchhoff's loop rule for the circuit
shown in Figure P19.28 for the case in which
E₁ = 20 V. &₂ = 8 V, R₁ = 30 2. R₂ = 20 02.
FIGURE P19.27
R₁
R₂
R₂
www

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