Expand the integrand of the Biot-Savart formula for the magnetic field and show that B(r) very far
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Expand the integrand of the Biot-Savart formula for the magnetic field and show that B(r) very far from a localized source of current is exactly the dipole magnetic field
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B(r) = Ho 3(m ) m r.3 4л
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The BiotSavart law is Br 1r 4T Into this we insert the rr expansion ...View the full answer
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