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Question 32 (Choice 2) - CBSE Class 10 Sample Paper Science Solution - For 2023 Boards - Solutions to CBSE Sample Paper - Science Class 10

Last updated at August 12, 2026 by

A compass needle is placed near a current carrying wire. State your observations for the following cases and give reasons for the same in each case-

  1. Magnitude of electric current in wire is increased.
  2. The compass needle is displaced away from the wire

 

Answer:

  1. The deflection in the compass needle increases.
    The Magnetic field of the current carrying conductor is directly proportional to the current flowing through it. 
  2. The deflection in the needle decreases as the magnetic field is inversely proportional to the perpendicular distance from the wire . 

magnetic-field-in-a-straight-current-carrying-conductor---teachoo.png

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