alleryThe induced current opposes the change that produced it, because:
ACharge is created
BFields are static
CCoils are heated
DEnergy is conserved
Answer & Solution
Correct answer: D. Energy is conserved
1. Suppose the induced current aided the change instead.
2. The motion would then feed itself without any work.
3. That violates the law of conservation of energy.
4. So the opposition follows from energy conservation.
_Source: syllabus Physics, Ch 6 'Electromagnetic Induction'_
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