7. Consider a long straight wire with diameter of 2 mm carrying a current of 1 amp. Assume that the current density is uniform. What is the magnetic field at the center of the wire? What is the magnetic field at a radius r = 0.5 mm from the center? At r = 1.0 mm from the center? Take the permeability H= Ho everywhere. 2 I=| Amp R= Imm
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Q: | = 200 Amps R = 4.14 cm
A: Current (I) = 200 A R = 4.14 cm = 0.0414 m
Q: nd
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Q: A long straight wire carries a current of 40 A in a region where a uniform external magnetic field…
A: answer option(d) 141.16 uT
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Q: 12 R
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Q: V
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