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PRACTICE · MEMBERSIntermediate · Single correct

PRACTICE / Magnetic force on a wire

Force on a current segment

A straight 0.20 m wire segment carries 3 A perpendicular to a uniform 0.40 T magnetic field.

Find its magnetic-force magnitude.

Organize the givens & assumptions
  • L = 0.20 m
  • I = 3 A
  • B = 0.40 T
  • θ = 90°

Straight current-carrying segment in a prescribed uniform external field; current perpendicular to field.

  1. A0.24 N0.24\ \mathrm N
  2. B1.2 N1.2\ \mathrm N
  3. C0 N0\ \mathrm N
  4. D0.12 N0.12\ \mathrm N

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