The magnetic induction field strength due to a short bar magnet at a distance 0.20  m on the equa...

Описание: The magnetic induction field strength due to a short bar magnet at a distance 0.20  m on the equatorial line is 20 × 10^-6 tesla. The magnetic moment of the bar magnet is
a. 3.2 Am^2
b. 6.4 Am^2
c. 1.6 Am^2
d. 16 Am^2

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