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l. A silver wire oats at the equator. The wire carries a current density j with a diameter d . The magnetic eld at equator is Email : 0.5 G towards

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l. A silver wire floats at the equator. The wire carries a current density j with a diameter
d . The magnetic field at equator is Email : 0.5 G towards North and perfectly horizontal. The wire lies in parallel orientation in east west direction. The density of
silver is 10.5 g/cm3, and resistivity is p : 1.59 ><10_8 Q -m. (a) What is the magnitude of current density and direction of current density?
(b) What is the power dissipated in silver wire?

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