Single correct · +4 / −1

A wire of length 0.5 m carries 4 A in a 0.2 T field perpendicular to it. The force on the wire is:

  1. (a) 0.2 N
  2. (b) 0.4 N
  3. (c) 0.8 N
  4. (d) 4 N
Answer and solution

Answer (b) 0.4 N

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