Magnetic field due to currentHard
Question
Value of earth′s magnetic field at any point is 7 × 10-5 wb/m2. This field is neutralised by field which is produced at the centre of a current carrying loop of radius 5 cm. The current in the loop (approx) : -
Options
A.0.56 A
B.5.6 A
C.0.28 A
D.28 A
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