E Fields in Action

Capacitors rely on electric fields to store charge and energy. How to get an even coat of paint with no waste?

Charge the object you want to paint, those paint droplets will love it.

       
Particle accelerators get tiny charged particles moving very fast then bash them together.

E fields accelerate them, B fields keep them moving in a circle.

Electrostatic precipitation. Takes tiny pollution particles out of the air.
       
Amuse your friends and family,  get a TASER Build your own Tesla coil in the spare bedroom. You never know when you might need one.