Design Energy Conversion Devices
Physics · Flashcards
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QUESTION
Which energy conversion best describes an electric motor in normal operation?
QUESTION
Which energy conversion best describes a wind turbine connected to a generator?
QUESTION
Calculate useful output if input is
500
J
500\ \text{J}
500
J
and efficiency is
0.20
0.20
0.20
.
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ANSWER
100
J
100\ \text{J}
100
J
.
Useful
=
0.20
×
500
=
100
J
\text{Useful}=0.20\times 500=100\ \text{J}
Useful
=
0.20
×
500
=
100
J
.
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