Ring Current

A ring current is an electric current carried by charged particles trapped in a planet's magnetosphere. It is caused by the longitudinal drift of energetic (10–200 keV) particles.

Read more about Ring Current:  Earth's Ring Current, The Ring Current and Geomagnetic Storms

Famous quotes containing the words ring and/or current:

    “Rich and rare were the gems she wore,
    And a bright gold ring on her hand she bore.”
    —Thomas Moore (1779–1852)

    “The work of the political activist inevitably involves a certain tension between the requirement that positions be taken on current issues as they arise and the desire that one’s contributions will somehow survive the ravages of time.”
    —Angela Davis (b. 1944)