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NEET 2022 (Phase 1) · Biot-Savart Law & Circular Coils

Biot-Savart Law & Circular Coils question from NEET 2022 (Phase 1)

Q66NEET 2022 · PHASE 1Easy

Biot-Savart Law & Circular Coils

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.

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Answer: (c)

  1. Statement I: Biot-Savart law gives dB⃗d\vec{B} due to a current element I dl⃗I\,d\vec{l}, so it is correct.
  2. Statement II: I dl⃗I\,d\vec{l} is a vector source while charge qq is a scalar source; the statement swaps them, so it is incorrect.
  3. So the answer is (c) Statement I is correct and Statement II is incorrect.
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