The Triboelectric Effect is a type of electrification that happens when you rub two different materials together and then separate them. Often, one will take on a positive charge and the other a negative. But how do you know which is going to be which?
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A bolt of lightning carries a LOT of extra excess electrons. We can calculate how much using a simple calculation.
No matter how hard you try, if you hae a copper rod that you rub with a cloth, you just can’t get a charge to build up on it. Why is that?
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