The quasi-neutrality of plasmas, means they tend overall to be electrically neutral. But plasmas can also violate quasi-neutrality, producing charged regions in double layers and particle beams, such as in M87’s jet, above.
![M87 Jet](https://www.plasma-universe.com/wp-content/uploads/M87-marshall.jpg)
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The quasi-neutrality of plasmas, means they tend overall to be electrically neutral. But plasmas can also violate quasi-neutrality, producing charged regions in double layers and particle beams, such as in M87’s jet, above.