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1. A horizontal overhead power line carries a current of 100 A directed from West to East.The magnetic field due to the current 2m below the line is:
(A): 1.00 x 10-5T towards South
(B): 1.00x10-5T towards North
(C): 3.14 x 10-5 T towards South
(D): 3.14 x 10-5T towards North
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