A long straight wire carries a current i. Let B1 be the

Question

A long straight wire carries a current i. Let B1 be the magnetic field at a point P at a distance d from the wire. Consider a section of length l of this wire such that the point P lies on a perpendicular bisector of the section. Let B2 be the magnetic field at this point due to this section only. Find the value of of d/l so that B2 differs from B1 by 1%.

ROSHAN MUJEEB · Accepted Answer

Solution :B1=umoi2&pi;dB1=umoi2&pi;dand.B2=&mu;oil4&pi;d2&times;22&ndash;√B2=&mu;oil4&pi;d2&times;22.Given.GivenB_2 - B_1 = B_1xx (1)/(100).&rArr;&mu;&minus;&minus;√oil4&pi;d2=(1.01)&mu;oi2&pi;d&rArr;&mu;oil4&pi;d2=(1.01)&mu;oi2&pi;d..(d)/(l) = (1.414)/(2.02) = 0.7` .

Magnetism> A long straight wire carries a current i....

Hrishant Goswami , 11 Years ago

ROSHAN MUJEEB

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Magnetism> A long straight wire carries a current i....

Hrishant Goswami , 11 Years ago

ROSHAN MUJEEB

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