Rankers Physics
Topic: Magnetic Effects of Current
Subtopic: Magnetic Field Due to Straight Current Carrying Wire

A semi-infinite straight conductor carries a current I P is a point at perpendicular distance a from the conductor as shown. The field at P due to the conductor is : Image related to
\[B=\frac{\mu_{0}I}{4\pi a}(1+sin\phi):outwards\]
\[B=\frac{\mu_{0}I}{4\pi a}(1+cos\phi):outwards\]
\[B=\frac{\mu_{0}I}{4\pi a}(1+sin\phi):inwards\]
\[B=\frac{\mu_{0}I}{4\pi a}(1+cos\phi):inwards\]

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