Q129 / 200 · NEET 2022 (Phase 1) · Physics

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:

  • Correct answer
    A
    Both Statement I and Statement II are incorrect
  • B
    Statement I is correct and Statement II is incorrect
  • C
    Statement I is incorrect and Statement II is correct
  • D
    Both Statement I and Statement II are correct

Solution

Biot–Savart's law is an equation describing the magnetic field generated by a constant electric current(through conductor OR due to charges moving in space like a beam). It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current.

Statement II is false as charge q is not a vector.

Hence, the correct answer is option: 'A'.

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