Mindy needs the apparatus to be able to detect a change in area as small as 4.50 cm² occuring over a time period of 1.50 s. If the minimum emf that can be reliably detected is 2.00 x 10 V, what is the magnitude of the minimum external magnetic field that would be needed from the solenoid? magnitude of minimum external magnetic field: Due to practical constraints, the largest magnetic field that the solenoid can actually produce is 3.50 x 10 T. Mindy decides to compensate by using multiple loops of the conductive material in series. How many conductive loops should be in the chest band? minimum number of conductive loops:

Mindy needs the apparatus to be able to detect a change in area as small as 4.50 cm² occuring over a time period of 1.50 s. If the minimum emf that can be reliably detected is 2.00 x 10 V, what is the magnitude of the minimum external magnetic field that would be needed from the solenoid? magnitude of minimum external magnetic field: Due to practical constraints, the largest magnetic field that the solenoid can actually produce is 3.50 x 10 T. Mindy decides to compensate by using multiple loops of the conductive material in series. How many conductive loops should be in the chest band? minimum number of conductive loops:

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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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

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 4.50 cm-
1.50 s. If the minimum emf that can be reliably detected is 2.00 x 104 V, what is the magnitude of the minimum
occuring over a time period of
external magnetic field that would be needed from the solenoid?
magnitude of minimum external magnetic field:
Due to practical constraints, the largest magnetic field that the solenoid can actually produce is 3.50 x 10 T. Mindy
decides to compensate by using multiple loops of the conductive material in series. How many conductive loops should
be in the chest band?
minimum number of conductive loops:

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