A low DC voltage is produced by the thermocouple when the two junctions are at different temperatures. This voltage is referred to as the thermoelectric voltage. This thermoelectric voltage is produced by the temperature gradient along the thermocouple wires.
Re: What's causes the electric shock type pain in a tooth Hi DM69. I'm not a dentist but I'm pretty sure its the erosion of your tooth exposing the pulp, I had the exact same feeling in my tooth before I had it extracted a month ago, so I feel your pain.
A bacterial infection in the bloodstream, a severe allergic reaction, or damage to the nervous system (brain and nerves) may cause vasodilatory shock. When a person is in shock (from any cause), not enough blood and oxygen are reaching the body's organs. If shock lasts more than a few minutes, the lack of oxygen starts to damage the bodyâs organs. If shock isn't treated quickly, it can cause permanent organ damage or death.