free charge

American  

noun

1. any electric charge that can be placed on a conductor or on or within a dielectric or that moves freely in space (polarization charge ).

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Example Sentences

The UV radiation creates free charge carriers in the particles, which induce decomposition of the trapped pollutants from air into small parts and their release.

From Science Daily

Free charge carriers in perovskite solar cells likely have a special form of protection from recombination, researchers at Forschungszentrum Jülich have discovered by means of innovative photoluminescence measurements.

From Science Daily

"I remembered as I saw these people making their own free charge for democracy and freedom, Martin Luther King, Jr, saying: 'Free at last, free at last'," Schulke wrote.

From BBC

“A free charge could end up draining your bank account,” Luke Sisak, a deputy district attorney, said in a video posted online this month.

From New York Times

These can be office managers offering an in-kind benefit to staff who plug in vehicles at work, or stores and restaurants offering a free charge to patrons to attract their custom.

From Reuters