41. This is also know as Potential differences . 42. The apparatus may operate in dual photoemission and contact potential difference ( CPD ) measurement modes. 43. The KVL voltage loop is then closed in the ionosphere where the potential difference is effectively zero. 44. A JFET is usually on when there is no potential difference between its gate and source terminals. 45. Also note that at potential difference , it has been suggested that this article be merged with voltage. 46. Glossokinetic artifacts are caused by the potential difference between the base and the tip of the tongue. 47. These different reactions create an electrical potential difference , just like the voltage between opposite electrodes of a battery. 48. For example, the Brookhaven National Laboratory Tandem Van de Graaff achieves about 30 million volts of potential difference . 49. 1 ) Stray electrons are accelerated by the potential difference created between eg the thundercloud and the ground. 50. In the playoffs, and even down the stretch, just about every play of every game is a potential difference -maker,