© Macmillan Learning Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic field is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop. By measuring the induced emf, a device user can estimate the patient's breathing rate. Mindy needs the apparatus to be able to detect a change in area as small as 5.50 cm² occuring over a time period of 1.50 s. If the minimum emf that can be reliably detected is 3.00 x 10 V, what is the magnitude Bmin of the minimum external magnetic field that would be needed from the solenoid? Bmin = Due to practical constraints, the largest magnetic field that the solenoid can actually produce is 3.50 x 10-3 T. Mindy decides to compensate by using multiple loops of the conductive material in series. What is the minimum number Nmin of wire loops that will allow the chest band to function as desired? Enter the smallest integer value. Nmin = loops T

© Macmillan Learning Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic field is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop. By measuring the induced emf, a device user can estimate the patient's breathing rate. Mindy needs the apparatus to be able to detect a change in area as small as 5.50 cm² occuring over a time period of 1.50 s. If the minimum emf that can be reliably detected is 3.00 x 10 V, what is the magnitude Bmin of the minimum external magnetic field that would be needed from the solenoid? Bmin = Due to practical constraints, the largest magnetic field that the solenoid can actually produce is 3.50 x 10-3 T. Mindy decides to compensate by using multiple loops of the conductive material in series. What is the minimum number Nmin of wire loops that will allow the chest band to function as desired? Enter the smallest integer value. Nmin = loops T

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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