alleryIn 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_
Keep practising Electricity: Current and Household Circuits
Browse all Electricity: Current and Household Circuits questions for Andhra Pradesh SSC (Class 10), or explore more Physics topics.
Related questions
In an a.c. generator, the slip-rings serve toInduction is greater in a coil whenIn a transformer the primary and secondary coils are usually wound aroundThe d.c. motor uses which rule to predict the direction of rotation?In Fleming's left-hand rule the thumb representsThe strength of an electromagnet can be increased byAn electromagnet differs from a permanent magnet because itA step-down transformer with 1000 primary turns and 100 secondary turns connected to 220 V