Atlantic Ocean by three inter-connected currents: the Gulf Stream which flows north-east from the North American coast at Cape Hatteras; the North Atlantic Current, a branch of the Gulf Stream which flows northward from the Grand Banks; and the Subpolar Front, an extension of the North Atlantic Current, a wide, vaguely defined region separating the subtropical gyre from the subpolar gyre. This system of currents transport warm water into the North Atlantic, without which temperatures in the North Atlantic and Europe would plunge dramatically. North of the North Atlantic Gyre, the cyclonic North Atlantic Subpolar Gyre plays a key role in climate
Drift current through a square centimeter area perpendicular to the direction of flow. (i) Drift current density J, due to free electrons is given by: formula_1 (ii) Drift current density J, due to holes is given by: formula_2 Where: n - Number of free electrons per cubic centimeter. p - Number of holes per cubic centimeter formula_3 – Mobility of electrons in formula_4 formula_5 – Mobility of holes in formula_4 E – Applied Electric Field Intensity in V /cm q – Charge of an electron = 1.6 × 10 coulomb. Drift current In condensed matter physics and electrochemistry, drift current is the