prov:value
| - The power source 115 may be a battery or some other type of power supply, such as a power adapter, an electromechanical system such as a generator or an alternator, a solar power cell, and so on and so forth.In one embodiment, the tip 111 may be formed from a conductive material, such as metal, or from a non-metallic conductive material, such as graphite, various salts, plasmas, and so on.
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