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Type: Multiple-Choice
Category: Physics
Level: Grade 12
Tags: PS2.B
Author: HTPhysics
Created: a month ago

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Grade 12 Physics

The strength of the magnetic field around a current-carrying wire is directly proportional to                                        .
  1. The length of the wire
  2. The square of the distance from the wire
  3. The current in the wire
  4. The thickness of the wire
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