Energy Formula:
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Definition: This calculator estimates the energy stored in a supercapacitor based on its capacitance and voltage.
Purpose: It helps engineers and electronics enthusiasts determine the energy storage capacity of supercapacitors for power applications.
The calculator uses the formula:
Where:
Explanation: The energy stored in a capacitor is proportional to its capacitance and the square of the voltage across it.
Details: Accurate energy calculation is crucial for designing power backup systems, energy harvesting applications, and pulse power systems.
Tips: Enter the capacitance in Farads and voltage in Volts. All values must be > 0.
Q1: Why is energy proportional to voltage squared?
A: Because the work needed to move charge increases as the capacitor charges, following the quadratic relationship in the formula.
Q2: What's a typical supercapacitor capacitance range?
A: Supercapacitors typically range from 0.1 Farads to several thousand Farads.
Q3: How does this differ from battery energy calculation?
A: Batteries have nearly constant voltage during discharge, while capacitors' voltage drops linearly as they discharge.
Q4: Can I use this for regular capacitors?
A: Yes, the formula applies to all capacitors, though values will be much smaller for standard capacitors.
Q5: How do I convert Joules to Watt-hours?
A: Divide Joules by 3600 (1 Wh = 3600 J).