00:03
So the problem wants us to find how much energy is stored, the and the charge on the plates.
00:12
It also wants to find the potential difference between the plates of the capacitor.
00:17
So what we know is the amount of electric potential energy between the plates of a capacitor can be found by doing one -half times the charge on the capacitor, times the potential difference between the plates of capacitor.
00:41
But what we don't have is the potential difference.
00:44
So what we can do is we can use the relationship that potential is equal to the charge divided by the capacitance of the capacitor.
00:55
And we can substitute that in right there for that expression.
01:01
So basically what we get is this.
01:05
We have the cues, the cues, are going to square up.
01:11
So we get q squared, and that's over capacitance.
01:15
So now what we have is a formula that we can use based on what we've been given.
01:20
So we'll just go ahead and substitute the numbers that we were given in, and we get, let's see, 2 ,500 microcoules, which is times 10 to the negative 6 kulams.
01:34
But that term, that number is squared...