Given two statements: Statement I: Biot–Savart’s law gives the magnetic-field strength of an infinitesimal current element (I dℓ) of a current-carrying conductor only. Statement II: Biot–Savart’s law is analogous to Coulomb’s inverse-square law, with the former field produced by a scalar source I dℓ and the latter by a vector source q. Which statements are correct?
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Question

Given two statements: Statement I: Biot–Savart’s law gives the magnetic-field strength of an infinitesimal current element (I dℓ) of a current-carrying conductor only. Statement II: Biot–Savart’s law is analogous to Coulomb’s inverse-square law, with the former field produced by a scalar source I dℓ and the latter by a vector source q. Which statements are correct?

Options

G1 Physics · Accepted Answer

Step 1: Biot–Savart law describes the magnetic field contributed by a current element I dℓ, so statement I is correct in the intended elementary formulation. Step 2: Current element I dℓ is a VECTOR directed along the conductor, while the charge q in Coulomb's law is a SCALAR. Step 3: Statement II reverses those descriptions, so it is incorrect. Final answer: (C) Statement I is correct and Statement II is incorrect..