Electrostatic machine and Electrical device

Electrostatic machine noun - Electrical device that produces a high voltage by building up a charge of static electricity.

Electrical device and electrostatic machine are semantically related. In some cases you can use "Electrical device" instead a noun phrase "Electrostatic machine".

Electrical device noun - A device that produces or is powered by electricity.

Electrostatic machine and electrical device are semantically related. Sometimes you can replace phrase "Electrostatic machine" with "Electrical device", this phrases are similar.