Reversible Transformations of a Charged Black Hole
Demetrios ChristodoulouJoseph Henry Laboratories, Princeton University, Princeton, New Jersey 08540R. RuffiniJoseph Henry Laboratories, Princeton University, Princeton, New Jersey 08540
1971en
ABI
Abstract
A formula is derived for the mass of a black hole as a function of its "irreducible mass," its angular momentum, and its charge. It is shown that 50% of the mass of an extreme charged black hole can be converted into energy as contrasted with 29% for an extreme rotating black hole.
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