The energy (in joules) stored in a capacitor with capacitance C (in Farads), having a potential difference V (in volts), is given by W= 1/2 CV^2. One application is in the electronice photoflash or strobe light. In such a unit, a capacitor of 10.7 [tex] \mu F [/tex] is charged to 311 V. Find the energy stored. Answer in units of J.(adsbygoogle = window.adsbygoogle || []).push({});

I got this part.. the answer was 0.513 J.

Next, it says, find the power required to charge the capacitor to this energy level in 43 s. Answer in units of W.

Since W is given in J/s, do I just do 0.513/43? which gives me .0119. We didn't do much of this in class, so I don't know how else to do it.

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# Homework Help: Power of a capacitor

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