Lenz's law of electromagnetic induction is a direct manifestation of which fundamental conservation principle?
Answer and explanation
Correct answer: A. Conservation of energy
- Step 1: Lenz's law states that an induced electromotive force always generates a current whose magnetic field opposes the change in magnetic flux producing it.
- Step 2: The mechanical work done against this opposing magnetic force is transformed into electrical energy, satisfying conservation of energy.
Answer
Conservation of energy.
Why not the others: Conservation of linear momentum governs colliding bodies; conservation of charge governs circuit nodes; and mass conservation applies to chemical reactions.
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