According to what I have read online, if a capacitor's ESR increases, the capacitor temperature will also increase and this has me left a little confused.
Consider the simple single resistor circuit below:
If my resistor value was 100 ohms, I would be dissipating 0.25 watts of energy. If I was to replace the 100 ohms resistor with a 200 ohms resistor I would be dissipation 0.125 watts of energy. We can clearly see here that a higher resistance value produces fewer watts and fewer watts equals less heat.
So the question is why is the same principle not occurring in a capacitor when the ESR of the capacitor increases? I would think that more ESR means more resistance, more resistance equals less current, less current equals fewer watts and fewer watts equal less heat. So more capacitor ESR equals a cooler capacitor.