Qstnid -23-given Below Are Two Statements : <B>statement I </B>: 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. <B> Statement Ii : </B>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: - Qstns With Ansrs Year:2022 - Neet-xii-physics

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qstns with ansrs year:2022

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Qstn# 23 Prvs-Qstn Next-Qstn

#23
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:
(A)Statement I is incorrect and Statement II is correct
(B)Both Statement I and Statement II are correct
(C)Both Statement I and Statement II are incorrect

(D)Statement I is correct and Statement II is incorrect
digAnsr: D
Ans : `` dB =\frac{\mu_{0}( Id \vec{\ell} \times \vec{r})}{4 \pi r ^{3}} ``
As per Biot Savart law, the expression for magnetic field depends on current carrying element `` Id \vec{\ell} `` , which is a vector quantity, therefore, statement-I is correct and statement-II is wrong.