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Moving Charges and Magnetism — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMoving Charges and Magnetism1 Mark
Question
Write expression in vector form for produced magnetic field due to small part of a current carrying conductor in Biot$-$Savart law.
✓

Answer

$\overrightarrow{8 B}=\frac{\mu_0 I}{4 \pi r} \frac{\overrightarrow{\delta l} \times \vec{r}}{r^3}$
or $\overrightarrow{8 B}=\frac{\mu_0 I}{4 \pi r} \frac{(\overrightarrow{\delta i} \times \vec{r})}{r^2} $

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