Find magnitude and direction of Magnetic Field B, due to element of a wire length of \( 2 \mathr...

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Find magnitude and direction of Magnetic Field B, due to element of a wire length of \( 2 \mathrm{~cm} \) having
P
current of \( 2 \mathrm{~A} \) in north direction at a point \( 4 \mathrm{~m} \) from
W
the element along east.
(1) \( 0.25 \times 10^{-12} \mathrm{~T} \)
(2) \( 2.5 \times 10^{-10} \mathrm{~T} \)
(3) \( 2.5 \times 10^{-12} \mathrm{~T} \)
(4) \( 25 \times 10^{-10} \mathrm{~T} \)
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