The only difference between the types of damage is its effect on shields, arc damage is more effective against blue shield, solar is more effective against orange shield, and void is more effective against purple shield.
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orange and purle shield?????????
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Some enemies have a shield when you shoot them you see the color of the shield
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oh a get you now like the wizards have orange shields, thought you ment the white over there hp bar
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Usually this is what ive come across for shields by enemy type: Vex = Void (Minotaur) Hive = Fire (Wizard) / Arc (Knight) Cabal = Fire (Centurion) Pretty sure theres more though this is just from my exp and generalization.