The magnetic field produced by a current flow | vedclass

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(B) According to the Biot-Savart Law or the right-hand thumb rule application for a straight current-carrying conductor,the magnitude of the magnetic

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(B) According to the Biot-Savart Law or the right-hand thumb rule application for a straight current-carrying conductor,the magnitude of the magnetic field $B$ at a distance $r$ from the conductor is given by the formula $B = \frac{\mu_0 I}{2 \pi r}$.From this expression,it is clear that the magnetic field $B$ is directly proportional to the current $I$ $(B \propto I)$ and inversely proportional to the perpendicular distance $r$ from the conductor $(B \propto \frac{1}{r})$.Therefore,the magnetic field is inversely proportional to the distance from the conductor.

The magnetic field produced by a current flowing through a straight conductor is inversely proportional to the $........$.

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