The capacitor requires (1/2 * 20F * 3V * 3V) = 90 joules of energy to charge. Assuming perfect conversion, a steady 8W of power will provide that much energy in 11.25 seconds.A 20F capacitor is gigantic, though, so I'm assuming this isn't a real-world scenario!
It varies from light to light, but typically it uses 1 AA(1.5V) or 2 AA's in series(3V). The solar light that uses 1 AA usually contains a "boost converter", which steps up the voltage to about 3V to pwer the white LED.
(3v - 4)(3v + 5)
q=6C V=3V U=qV=(6C)(3V)=18 J U(potential energy)=18 Joules (18J)
I believe that is 300 horsepower
They are not equivalent.
They are not equivalent.
(8 + 3v)(8 + 3v) or (8 + 3v)2
10 + 8v - 3v = 10 + 5v
the output of 7805 is 2v or 3v if we give the input as 2v or 3v.
They are not equivalent.
No, they are not.