•10 (a) In Fig. 27-28, what value must R have if the current in the E- circuit is to be 1.0 mA? Take &, = 2.0 v, E = 3.0 V, and rn =n= 3.0 0. (b) What is the rate at which thermal en- ergy appears in R? Tg

•10 (a) In Fig. 27-28, what value must R have if the current in the E- circuit is to be 1.0 mA? Take &, = 2.0 v, E = 3.0 V, and rn =n= 3.0 0. (b) What is the rate at which thermal en- ergy appears in R? Tg

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 1CQ: Can a wire carry a current and still be neutral-that is, have a total charge of zero? Explain.

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Question

•10 (a) In Fig. 27-28, what value
must R have if the current in the E-
circuit is to be 1.0 mA? Take &, = 2.0
v, E = 3.0 V, and rn =n= 3.0 0. (b)
What is the rate at which thermal en-
ergy appears in R?
Tg

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