CBSE Class 10 Sample Paper Science Solution - For 2023 Boards

Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?


  1. straight lines perpendicular to the wire.
  2. straight lines parallel to the wire.
  3. radial lines originating from the wire.
  4. concentric circles centred around the wire.




Therefore, the correct answer is (d) The field consists of concentric circles centred around the wire. 



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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo