 24 volt charge controller with dump load for wind turbine generator 440 amp USA US $259.00 
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Lasers are used to try to produce controlled fusion reactions that might supply large amounts of electrical en
Lasers are used to try to produce controlled fusion reactions that might supply large amounts of electrical energy. The lasers require brief pulses of energy that are stored in large rooms filled with capacitors. One such room has a capacitance of 60 10-3 F charged to a potential difference of 13 kV.
(a) Find the energy stored in the capacitors, given that W = 1/2CV2.
J
(b) The capacitors are discharged in 10 ns (1.0 10-8 s). What power is produced?
W
(c) If the capacitors are charged by a generator with a power capacity of 1.5 kW, how many seconds will be required to charge the capacitors?
s
A. E = V^2C/2 = 5.07 MJ
B. P = E/t = 5.07E14 W
C. t = E/P = 3380 s
1st answerer forgot the "/2" part of the energy formula.
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