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relationship between energy and electrical charge?

by Jhenrique
Tags: emc˛
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Jun6-14, 11:26 PM
P: 686
E=mc˛ shows the relationship between matter (mass) and energy, but another elementary information in the atomic physics is the electrical charge. So exist some relationship between energy and electrical charge?
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Jun7-14, 01:16 AM
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Matterwave's Avatar
P: 2,688
Certainly, see:

The energy of a spherical distribution of charge Q with radius R can be calculated quite easily as:

Simon Bridge
Jun7-14, 01:26 AM
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Simon Bridge's Avatar
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The famous relationship is properly ##E=\gamma mc^2##, where the gamma comes from relativity.
It is an identity - mass is another form of energy.

The Universe has other rules - you cannot freely convert one form of energy into another.
i.e. kinetic energy does not spontaneously turn into gravitational potential energy - you also have to direct the momentum upwards.

As well as conservation of energy, you have to obey other conservation laws.
One of them is a conservation of charge.

The effect of charge is that you can only create charged particles in oppositely charged pairs.

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