A respiration monitor has a flexible loop of copper wire, which wraps about the

Question

A respiration monitor has a flexible loop of copper wire, which wraps about the chest. As the wearer breathes, the radius of the loop of wire increases and decreases. When a person in the Earth

Explanation / Answer

The way to go about this is to first realize that you have to convert your two radius from cm to m. so 24.5cm-->.245m and 28.9cm-->.289m. Now i am pretty sure the magnitude is 47.7 uT or 47.7*10^(-6) T. so now that everything is converted we can go ahead and solve it. Your answer is going to be negative. ((r2^2-r1^2)*(magnitude)*(-pi))/((time in seconds)*(Resistance)) so (.289^2-.245^2)*(47.7*10^(-6))*(-pi)=-3.521*10^(-6) (-3.521*10^(-6))/(1.17*25.1)=-1.199*10^(-7) A--->answer

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