Given below are two statements$:$
Statement $I:$ Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element (IdI) of a current carrying conductor only.
Statement $II :$ Biot-Savart's law is analogous to Coulomb's inverse square law of charge $q$, with the former being related to the field produced by a scalar source, Idl while the latter being produced by a vector source, $q$. In light of above statements choose the most appropriate answer from the options given below:
NEET 2022, Medium
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$d \overrightarrow{ B }=\frac{\mu_{0}( Id \vec{\ell} \times \overrightarrow{ r })}{4 \pi r ^{3}}$
As per Biot Savart law, the expression for magnetic field depends on current carrying element $\operatorname{Id} \vec{\ell}$, which is a vector quantity, therefore, statement-I is correct and statement-II is wrong.
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