I am new to electrical engineering. Please excuse me if I use the wrong terms. (Welcome to correct me tho ;-) )
I am learning about capacitors, and I have been studying a circuit diagram explaining how capacitors can "stand-in" as a power source if the power drops. This article also mentioned that it can help with spikes. Upon researching spikes, I learned that a cap can handle a percentage more voltage than what it is rated for. This is useful in a voltage spike because the cap can "absorb" some of that voltage, decreasing the spike to let's say an IC.
I understand this. BUT. Won't the 5V capacitor now sit at lets say 6 volts? What happens when the power dips and the cap is supplying current to the circuit? Won't it supply that current at 6V instead of 5V because of the previous overvoltage it accepted?