SSE JE Electrical Engineering 10 Dec 2020 Papers

Question : 119 of 200

Marks: +1, -0

Magnetic field strength at a point distant r metres from a pole is:

Solution:

The magnetic intensity due to an isolated pole of strength mp at a distance (r) is:

\B ={\µ_{0} \m _{ \p }}/{4 \π\r ^{2}}

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