A current of 5A exists in a square loop of side 1 2 ~m . Then the magnitude of the magnetic field B at the centre of the square loop will be p 10⁻⁶ ~T . where, value of p is _____ . [ . Take . ₀=4 10⁻⁷ TmA ⁻¹ ] .

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Let B be the magnetic field due to single side aligned & then B= ₀ i 4 ~d ( ₁+ ₂ ) & = 10⁻⁷ 5 2 1 2 2 1 2 =2 10⁻⁶ & B_ net at centre O=4 B & =8 10⁻⁶ aligned

A current of 5A exists in a square loop of side 1 2 ~m . Then the magnitude of the magnetic field B at the centre of the square loop will be p 10⁻⁶ ~T . where, value of p is _____ . [ . Take . ₀=4 10⁻⁷ TmA ⁻¹ ] .

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