These particles crash into smaller ice particles in the swirling winds inside storm clouds, resulting in a separation of electrical charge. (realclimate.org)
Negative electrical charges on their outer surfaces help to align them with the positive charges on one inner surface of the chamber. (uchospitals.edu)
A new experiment has shown that a drop of water with positive electrical charge can be made to «bounce off» a negatively charged object. (newscientist.com)