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Electromagnetism FAQ

Lenz's law states that induced current:

Opposes the change in flux that caused it. Lenz's law is the minus sign in Faraday's law: the induced current opposes the flux change to conserve energy.

Short Answer

Opposes the change in flux that caused it is the best answer.

Electromagnetism questions become manageable once you separate source, field, potential, current, and force. Most wrong answers mix those layers together or ignore direction.

Lenz's law is the minus sign in Faraday's law: the induced current opposes the flux change to conserve energy.

Why This Answer Is Correct

This is a Easy-level question in Electromagnetism. The prompt is really testing whether you can connect the concept to its defining physical relationship instead of picking a nearby-but-wrong term.

Keep charge, field, potential, and current distinct. That single habit fixes a large fraction of electromagnetism errors.

Choices At A Glance

  • A. Always flows clockwise
  • B. Opposes the change in flux that caused it
  • C. Flows in the same direction as flux
  • D. Is always zero

When similar options appear on an exam, eliminate the ones that break the core law, use the wrong units, or confuse a definition with a consequence.

Topic Snapshot

Topic: Electromagnetism

Difficulty: Easy

Best next move: Re-state the governing law in your own words, then solve one more example from the same topic before moving on.