In the figure R, = 6.19 2, R, = 18.6 N, and the ideal battery has emf ɛ = 11.1 V. (a) What is the magnitude of current i,? (b) How much energy is dissipated by all four resistors in 2.43min?wwRiR9(a) NumberUnits(b) NumberUnits You are given a number of 35 0 resistors, each capable of dissipating only 2.6 W without being destroyed. What is the minimum number of such resistors that you need to combine inseries or in parallel to make a 35 2 resistance that is capable of dissipating at least 8.9 W?NumberUnits

Answered: Image /qna-images/answer/fb03d50d-ea25-4c19-99ec-81039656b04d.jpg

In the figure R, = 6.19 2, R, = 18.6 N, and the ideal battery has emf ɛ = 11.1 V. (a) What is the magnitude of current i,? (b) How much energy is dissipated by all four resistors in 2.43 min? ww R9 ww (a) Number Units (b) Number Units

In the figure R, = 6.19 2, R, = 18.6 N, and the ideal battery has emf ɛ = 11.1 V. (a) What is the magnitude of current i,? (b) How much energy is dissipated by all four resistors in 2.43 min? ww R9 ww (a) Number Units (b) Number Units

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 63PQ

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Concept explainers

Ohm's law

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.

Path of Least Resistance

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

100%

In the figure R, = 6.19 2, R, = 18.6 N, and the ideal battery has emf ɛ = 11.1 V. (a) What is the magnitude of current i,? (b) How much energy is dissipated by all four resistors in 2.43
min?
ww
R
i
R9
(a) Number
Units
(b) Number
Units

You are given a number of 35 0 resistors, each capable of dissipating only 2.6 W without being destroyed. What is the minimum number of such resistors that you need to combine in
series or in parallel to make a 35 2 resistance that is capable of dissipating at least 8.9 W?
Number
Units

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