Call your doctor at once if you have a serious side effect such as: 1  feeling short of breath, even with mild exertion; 2  swelling of your ankles or feet; 3  slow or uneven heartbeats; or. 4  numbness or cold feeling in your hands and feet.
For the most part, I understand the derivation; however, at the end of the derivation, the author adds one little condition: Where is the energy in a parallel plate capacitor actually stored? Well, if we think about it, the only place it could be stored is in the electric field generated between the plates..
Suppose, a small charge q is stored in the positive plate of the capacitor with respect to the battery voltage V and a small work done is dW. Then considering the total charging time, we can write that, Now we go for the energy loss during the charging time of a capacitor by a battery.