Sunlight Is Coming Straight Down on a Solar Panel (Length

Sunlight is coming straight down on a solar panel (length 1.25 m and width W=0.850 m) belonging to the Spirit Mars rover.The amplitude of the electric field in the solar radiation is 642 V/m and is uniform (the radiation has the same amplitude everywhere) .Find the efficiency of the solar panel if average electrical power converted from the solar radiation is 131 W.

A) 20.4 %
B) 26.0 %
C) 18.9 %
D) 22.6%
E) 24.5 %

Correct Answer:

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