Question 11
A motor of a corn ill operates on electrical energy of 1.44 × 105J. If one-quarter of the energy is wasted in the form of sound and heat, deermine the efficiency of the machine.
Objective
Question details
- Exam body
- UNN
- Subject
- Physics
- Year
- 2020/2021
- Question no.
- #11
- Type
- Objective
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