Imagine i have a capacitor of capacitance 100uF.Capacitance is nothing but the energy the capacitor can store?.If E=mc2 is true, then my capacitor must be able to store the same energy at all times, but in real case my capacitor fails after some days or months?what is the hidden mystery. kindly help me off....
2007-01-06 13:04:16 · 4 answers · asked by deepak v 1 in Science & Mathematics ➔ Physics
The important thing to remember is the equality of mass and energy. The equation, E=MC^2 means that the rest energy of a mass is equal to its mass times C^2 (the speed of light squared). This is true regardless of the time reference. It has little to do with with energy that is added to the mass that is an extremely small percentage of the energy that the mass itself represents.
When you charge a 100 uf capacitor, you are literally jamming electrons onto the negative plate and pulling electrons out of the positive plate, leaving holes or an electron deficiency.
This creates a voltage potential across the electrolyte between the plates.
In theory and under ideal conditions, there is no current flow across the electrolyte - only from the positive plate to the negative plate in a completed circuit. The capacitor, again, in theory, will hold its charge indefinitely. However, in the real world, there is leakage that occurs from the positive plates to the negative plates, and given enough time, the capacitor will become discharged.
It is true that when charged, the capacitor's mass is increased - but it is by a factor that is so insignificant, it is only of interest to a mathematician, and has no effect on its electrical characteristics in a circuit.
Their is no mass that is being converted to energy, there is only a discharge of energy equal to the energy that is stored in the capacitor.
2007-01-06 14:24:01 · answer #1 · answered by LeAnne 7 · 1⤊ 0⤋
e=mc2 is an equasion. energy = mass x constant
capacitabce is a measurement of kenetic energy, . if the capaciter fails than the measurement is reduced and can no longer hold the energy
what do you whant to know
2007-01-06 13:22:22 · answer #2 · answered by ford m 1 · 0⤊ 0⤋
An ideal capacitor should not loose its energy with time.
However in practince, there is a leak in all capacitors and hence they loose energy with time.
2007-01-06 13:32:44 · answer #3 · answered by Pearlsawme 7 · 0⤊ 0⤋
E=mc2
energy = mass x speed squared
2007-01-06 13:15:47 · answer #4 · answered by Simon Z 1 · 0⤊ 1⤋