
Episode 43: Electric Forces and Fields
The Science of Everything Podcast
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The Differences Between Electricity and Gravity
Most of the time neutral objects, that is objects that have no net charge, are neutral because they have a balance or a close enough balance at least. This is the case for most objects in the macro world, trees, cars, people, whatever. But as you probably also know, positive and negative charges attract each other. At the very small scale it's common to find charged ions or charged molecules but as you get larger and larger it's very red to find a charged house or a charged person. So I think the size of a planet is almost certainly going to be basically electrically neutral but it's going to have a big gravitational influence.
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