P28_016 - E and r : E = 0 . 30 V, r = 1000 . (b) The...

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16. (a) Let the emf of the solar cell be E and the output voltage be V .Thu s , V = E− ir = E− µ V R r for both cases. Numerically, we get 0 . 10 V = E− (0 . 10 V / 500 Ω) r and 0 . 15 V = E− (0 . 15 V / 1000 Ω)
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Unformatted text preview: E and r : E = 0 . 30 V, r = 1000 . (b) The eciency is V 2 /R P received = . 15 V (1000 )(5 . 0 cm 2 )(2 . 10 3 W / cm 2 ) = 2 . 3 10 3 ....
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