Question

in the figure theta equals to 10 inverse root 2 then the correct direction of the magnetic field at P can be shown by the arrow ​

Answer 1

Answer:

2

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Answer 2

Therefore direction will be shown by 1.

Explanation:

As "P" is perpendicular so the direction will be just opposite to M sinθ.

Ba =  μ o / 4 π (2 M) cos θ / r^3

B⊥ =  μ o / 4 π M sin θ / r^3

tan α = B⊥  / Ba  = tan θ / 2 = 1 / 5^2

So tan α = 1 / tan  θ  cot θ

tan α  = tan ( π / 2 - θ  )

So  α + θ = π / 2

So < APB = 90°

Therefore direction will be shown by 1.