Magnetic field due to currentHard
Question
A horizontal overhead power line is at a height of 4m from the ground and carries a current of 100 A from east to west. The magnetic field directly below it on the ground is (μ0 = 4π × 10-7 T m A-1)
Options
A.2.5 × 10-7 T southward
B.5 × 10-6 T northward
C.5 × 10-6 T southward
D.2.5 × 10-7 northward
=5 × 10-6 T southward More Magnetic field due to current Questions
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