an overhead electric power line carries a maximum current of 250 A. what is the magnitude...
an overhead electric power line carries a maximum current of 250 A. what is the magnitude of the maximum magnetic field in telsa at a point 0.037 m directly below the power line?
Homework Answers
Solution)
Here,
The power line can be considered as an infinite wire.
So,
Magnetic field at a distance r away is calculated by:
B=uoI/2*3.14*r= (4*3.14*10^-7)*250 A/2*3.14*0.037
B= 0.00135 T
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