12AWG copper wire (0 081 diameter) has a current carryingcapacity of ...

#12AWG copper wire (0.081â€ diameter) has a current carrying capacity of 20A. (a)With 20 A in...

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Physics

#12AWG copper wire (0.081â€ diameter) has a current carryingcapacity of 20A. (a)With 20 A in the wire, what is the magnitude ofthe magnetic field the surface of the wire? (b) If a very long,straight piece of this wire is placed in the Earthâ€™s magnetic fieldat sea level (~ 0.5 Gauss)with the wire at right angles to thefield, where are the points at which the Earthâ€™s magnetic field iscanceled, i.e. the net magnetic field is zero?

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4.3 Ratings (660 Votes)

Given DataDiameter D 0081 inches 2058 mm so approx 206 mmTherefore radius R 103 mmSubpart a A wire is carrying 20A current so I 20 AWe have asked to calculate the magnitude of the magnetic fieldon the surface See Answer

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#12AWG copper wire (0.081â€ diameter) has a current carrying capacity of 20A. (a)With 20 A in...