PRASHNIKAप्रश्निका
‹ Back to the paper

Using Ampere circuital law, obtain an expression for magnetic field ‘B’ at a point at a…

Physics20263 marksDerivation
Using Ampere circuital law, obtain an expression for magnetic field ‘B’ at a point at a perpendicular distance ‘r’ from a long current carrying conductor. (Recall)

Given: Ampere's circuital law $\oint \vec{B} \cdot d\vec{l} = \mu_0 I$ around a circular path of radius r

To show: $B = \frac{\mu_0 I}{2\pi r}$

Answer

No answer yet.

Moving charges and magnetism

From ISC 2026 Specimen Physics Paper 1, question 11.