Red Seal Electrician Practice
Magnetism and electromagnetismQuestion 172 of 1506

Some electricians picture current flowing from positive to negative. Which hand do they use in the rule for the direction of the lines of force around a conductor?

  1. The left hand
  2. Either hand, if the palm faces up
  3. Neither, as the rule fails for that picture
  4. The right hand
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Correct answer: The right hand

The left-hand rule is written for electron flow. With the opposite current picture, the same rule is used with the right hand.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 3.2: Electricity and Magnetism

Practice magnetism and electromagnetism

Questions last reviewed: 18 October 2026