Questions
A short magnet of moment produces a neutral point on its axis. If horizontal component of earth's magnetic field is , then the distance of the neutral point should be
detailed solution
Correct option is C
At neutral point, Magnetic field due to magnet=Magnetic field due to earthμ04π2Md3=5 x 10-5⇒10-7 x 2 x 6.75d3=5 x 10-5⇒d=0.3m=30cmTalk to our academic expert!
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