An electric motor primary converts
electrical energy to chemical energy
electrical energy to heat energy
electrical energy to mechanical energy
mechanical energy to electrical energy
mechanical energy to light energy
Correct answer is C
No explanation has been provided for this answer.
II only
I and II only
II and III only
I and III only
I, II, and III
Correct answer is D
No explanation has been provided for this answer.
Which of the following radiations has the shortest wavelength?
Infrared rays
Light waves
Microwaves
Ultraviolet rays
X-rays
Correct answer is E
No explanation has been provided for this answer.
I only
II only
I and II only
I and III only
II and III only
Correct answer is B
No explanation has been provided for this answer.
1.3 × 102m
3.0 × 102m
2.4 × 102m
5.0 × 102m
7.5 × 102m
Correct answer is E
No explanation has been provided for this answer.