Final answer:
The energy stored in a capacitor is given by the formula U₀ = ½C₀V₀², where C₀ is the capacitance of the capacitor and V₀ is the voltage across it.
Step-by-step explanation:
The energy stored in a capacitor, U₀, can be found using the equation U₀ = ½C₀V₀², where C₀ is the capacitance of the capacitor and V₀ is the voltage across it.
For example, if we have a capacitor with a capacitance of 10 μF and a voltage of 5 V, we can calculate the energy stored by substituting these values into the equation: U₀ = ½(10 μF)(5 V)² = 125 μJ.