A solar cell provides an emf of 0.50 V. (a) If the cell supplies a constant...
A solar cell provides an emf of 0.50 V. (a) If the cell supplies a constant current of 26.5 mA for 6.0 h, how much electrical energy does it supply? J (b) What is the power - the rate at which it supplies electrical energy? J/s
Homework Answers
a)
q=I*delta_t
q=26.5*10^3 *6(60*60)
= 572.4C
electrical energy = 572.4C*.5V
= 286.2J
B) Power = E/T
=> P = 286.2J/6(60*60)
= 0.01325 J/s
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