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NEET PHYSICSMedium

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 vector source, Idl while the latter being produced by a scalar source, q. In light of above statements choose the most appropriate answer from the options given below:

A

Both Statement I and Statement II are correct

B

Both Statement I and Statement II are incorrect

C

Statement I is correct and Statement II is incorrect

D

Statement I is incorrect and Statement II is correct

Step-by-Step Solution

According to Biot-Savart's law dB⃗=μ04πIdl⃗×r⃗r3d\vec{B} = \frac{\mu_0}{4\pi} \frac{I d\vec{l} \times \vec{r}}{r^3}, which is applicable for infinitesimal element. It is analogous to Coulomb's law, where Idl⃗I d\vec{l} is vector source and electric field is produced by scalar source qq. Here statement I is correct and statement II is incorrect.

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