mechanical energy to electrical energy thermal energy to mechanical energy nuclear energy to mechanical energy thermal energy to electrical energy
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: After a storm, a hospital may have to rely on backup generators to power some equipment. Which is the energy conversion provided by the generators?
Possibilities:
- mechanical energy to electrical energy
- thermal energy to mechanical energy
- nuclear energy to mechanical energy
- thermal energy to electrical energy

mechanical energy to electrical energy