An electrical motor has a degree of efficiency (Eff) equal to the ratio of its useful output power (
) to the input power (
) required to operate it.
A. 
B. 
C. 
D. 
Answer: A
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Fill in the blank(s) with the appropriate word(s).
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a. Vas deferens c. Prepuces b. Seminal vessels d. Cowper's glands
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What will be an ideal response?
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