59 In Fig. 27-51, R₁ = 20.0 2, R₂ = 10.0 22, and the ideal bat- tery has emf & = 120 V. What is the current at point a if we close (a) only switch S₁, (b) only switches S₁ and S₂, and (c) all three switches? Figure 27-51 Problem 59. a S₁ S₂ Sg 8 R₁2 R₁ Lwww ww In W R₁ R₂ R₂ R₁

59 In Fig. 27-51, R₁ = 20.0 2, R₂ = 10.0 22, and the ideal bat- tery has emf & = 120 V. What is the current at point a if we close (a) only switch S₁, (b) only switches S₁ and S₂, and (c) all three switches? Figure 27-51 Problem 59. a S₁ S₂ Sg 8 R₁2 R₁ Lwww ww In W R₁ R₂ R₂ R₁

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 60PQ: Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf,...

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Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

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In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

59 In Fig. 27-51, R₁ = 20.0 2, R₂ = 10.0 2, and the ideal bat-
tery has emf & = 120 V. What is the current at point a if we close
(a) only switch S₁, (b) only switches S₁ and S₂, and (c) all three
switches?
Figure 27-51 Problem 59.
a S₁
S₂
S3
18 R₁ R₁
R₁
I'm
LwIw Im
R₁
R₂
R₂

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