Physics, 22.11.2019 15:31 mathamaticlly
1. when a motor is turned on, electrical energy is transformed to mechanical energy plus heat energy.
true or false
2. the outward evidence for this transformation can be seen only in the mechanical motion of the motor.
true or false
3. what is true of the efficiency of this motor?
a. it is more than 100% efficient
b. it is 100% efficient
c. it is less than 100% efficient
d. none of the above
Answers: 2
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