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In an a.c. generator the energy transformation is
AHeat to electrical energy directly
BElectrical to mechanical energy
CChemical to electrical energy directly
DMechanical to electrical energy
Answer & Solution
Correct answer: D. Mechanical to electrical energy
1. A generator rotates a coil in a magnetic field.
2. The mechanical rotation induces an emf and a current.
3. So mechanical input gives an electrical output.
4. Hence option A is correct.
_Source: Selina Concise Physics Class 10, Ch 10 Electromagnetism (Mistral OCR'd PDF), section on ac generator_
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