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Physics
Electricity and Magnetism
Magnetic Flux Density
A man stands underneath a power line carrying a current of 150 A. If the power line is 15 m above the man, what is the magnetic flux density measured by the man (Neglect the Earth's magnetic field).
1 answer
flux density= uI/2pir = (4pi e -7)(150A)/ (2pi * 15m)= 2.0e-6
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