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 (Idl) 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:

<p><span contenteditable="false"> <math> <mi mathvariant="normal">d</mi> <mover accent="true"> <mrow> <mrow> <mi mathvariant="normal">B</mi> </mrow> </mrow> <mo>? </mo> </mover> <mo>=</mo> <mfrac> <mrow> <mrow> <msub> <mrow> <mrow> <mi>μ</mi> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msub> <mo> (</mo> <mi mathvariant="normal">I</mi> <mover accent="true"> <mrow> <mrow> <mi mathvariant="script">l</mi> </mrow> </mrow> <mo>? </mo> </mover> <mover accent="true"> <mrow> <mrow> <mi mathvariant="script">l</mi> </mrow> </mrow> <mo>? </mo> </mover> <mo>×</mo> <mover accent="true"> <mrow> <mrow> <mi mathvariant="normal">r</mi> </mrow> </mrow> <mo>? </mo> </mover> <mo>)</mo> </mrow> </mrow> <mrow> <mrow> <mn>4</mn> <mi>π</mi> <msup> <mrow> <mrow> <mi mathvariant="normal">r</mi> </mrow> </mrow> <mrow> <mrow> <mn>3</mn> </mrow> </mrow> </msup> </mrow> </mrow> </mfrac> </math> </span></p><p><strong>The expression for magnetic field depends on current carrying element <span contenteditable="false"> <math> <mi mathvariant="normal">I</mi> <mi mathvariant="normal">d</mi> <mo>? </mo> <mover accent="true"> <mrow> <mrow> <mi mathvariant="script">l</mi> </mrow> </mrow> <mo>? </mo> </mover> </math> </span><math><mover accent="true"><mrow><mrow></mrow></mrow></mover></math>&nbsp;, which is a vector quantity, therefore, statement-I is correct and statement-II is wrong.</strong></p>

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