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OpenStudy (anonymous):
a wire carries 15 A. You form it into a singleturn circular loop with magnetic field 80 µT at the loop center. What is the loop radius?
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OpenStudy (anonymous):
6
OpenStudy (anonymous):
use the formula B(at the center)= (4 pi * 10^(-7) ) * I (current) / ( 2 radius)
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