Question
Two short bar magnets of length 1 cm each have magnetic moments 1.20 Am2 and 1.00 Am2 respectively. They are placed on a horizontal table parallel to each other with their N poles pointing towards the South.
They have a common magnetic equator and are separated by a distance of 20.0 cm. The value of the resultant horizontal magnetic induction at the mid - point O of the line joining their centres is close to(Horizontal component of earth’s magnetic induction is 3.6 × 10–5 Wb/m2)
-
3.6 x10-5 Wb/m2
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2.56 x10-4 Wb/m2
-
3.50 x10-4 Wb/m2
-
5.80 x x10-4 Wb/m2
Solution
B.
2.56 x10-4 Wb/m2
