Photovoltaic cells work because solar energy striking their surface
A) Causes the cells to liquefy as they heat
B) Releases electrons, causing an electric potential in attached wires
C) Is collected in the form of photons and sent through attached wires
D) Causes an uneven magnetic charge to develop
E) Changes to chemical energy
Correct Answer:
Verified
Q20: The idea of cogeneration is to actively
Q21: Manure or dung makes a good fuel
Q22: Active solar energy systems involve
A) Large volumes
Q23: Amorphous silicon collectors are currently being used
Q24: Where does wind energy have the greatest
Q26: Photovoltaic electricity costs are _ coal or
Q27: In the United States and Canada, the
Q28: The most effective technology developed so far
Q29: Since the 1920s, hydropower production has
A) Risen,
Q30: In the United States, windmills played a
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