Two long straight wires are set parallel to each other. Each carries a current \( i \) in the sa... VIDEO
Two long straight wires are set parallel to each other. Each carries a current \( i \) in the same direction and the separation between them is \( 2 r \). The intensity of the magnetic field midway between them is
(A) \( \mu_{0} i / r \)
(B) \( 4 \mu_{0} i / r \)
(C) Zero
(D) \( \mu_{0} i / 4 r \)
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