This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance. This calculator is designed to compute for the value of the energy stored in a capacitor given its capacitance value and the voltage across it. The time constant can also be computed if a resistance value is given.
The capacitance of a capacitor can be defined as the ratio of the amount of maximum charge (Q) that a capacitor can store to the applied voltage (V). So the amount of charge on a capacitor can be determined using the above-mentioned formula. Capacitors charges in a predictable way, and it takes time for the capacitor to charge.
This tool functions both as a capacitor charge calculator and a capacitor energy calculator with the required input being the same in both cases: the capacitance and voltage running through the capacitor. It supports a wide range of input and output measurement units.
A capacitor's energy (or work) can also be calculated if its capacitance (C) and voltage (V) are known, using the equation: where E is the energy (sometimes written as W for work). Example 1: A capacitor on a computer motherboard is known to have capacitance of 5 Farads and the voltage is known to be 50 mV. What is the capacitor's charge in Farads?
Voltage at time ‘t’ while discharging: The time constant, RC, is the time it takes for the voltage across the capacitor to charge or discharge 63.2%, which is equal to e-1. The amount of electric charge that has accumulated on the plates of the capacitor can be calculated if the voltage and capacitance are known.
The Average power of the capacitor is given by: Pav = CV2 / 2t where t is the time in seconds. When a capacitor is being charged through a resistor R, it takes upto 5 time constant or 5T to reach upto its full charge. The voltage at any specific time can by found using these charging and discharging formulas below: