Choose the correct answer

Two short bar magnets have magnetic moments 1.20 Am2 and 1.00 Am2 respectively. They are kept on a horizontal table parallel to each other with their north poles pointing towards 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 (Horizontal components of Earths magnetic induction is 3.6 105 Wb m2 )

- (a) 3.60 x 10-5 Wb m-1

- (b) 3.5 x 10-5 Wb m-1

- (c) 2.56 x 10-4 Wb m-1

- (d) 2.2 x 10-4 Wb m-1

Correct Answer:

(c) 2.56 x 10-4 Wb m-1

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Answered on 29/10/2020 at 12:39PM by Thamizh