theman408 Messages 94 Reaction score 0 Thread starter Dec 5, 2009 #1 What's the formula to calculate it, I've looked everywhere.
f95toli Science Advisor Messages 3,510 Reaction score 1,073 Dec 5, 2009 #2 You can't calculate it (at least not without some very complicated computer simulations, and then only for simple materials). You have to look up the value in a table.
You can't calculate it (at least not without some very complicated computer simulations, and then only for simple materials). You have to look up the value in a table.
theman408 Messages 94 Reaction score 0 Dec 5, 2009 #3 Whats the E field formula that relates to it? E= q/ErEoA ?