Convert Biot to Megaampere (Bi to MA)

Biot (Bi) and Megaampere (MA) are both units of current. With the conversion form below, you can effortlessly and accurately convert biot to megaampere. This free online calculator tool makes it simple and easy to perform the conversion from Bi unit to the MA unit.

Electric current is the rate at which electric charge flows through a conductor. It is measured in amperes (A), the SI base unit named after French physicist André-Marie Ampère. One ampere equals one coulomb of charge passing a point per second (1 A = 1 C/s). Current can flow as direct current (DC)—in a single direction—or as alternating current (AC), which periodically reverses direction and powers most homes and businesses worldwide.

A biot (Bi) is a unit of electric current equal to 10 amperes in SI units, making it identical to the abampere. The unit is named after physicist Jean-Baptiste Biot and was used historically in the CGS electromagnetic system. The biot appears occasionally in historical physics literature, particularly in works discussing magnetism and electromagnetism from the late 19th and early 20th centuries. Modern scientific practice uses SI units (amperes) exclusively, making the biot notation rare in contemporary applications. Researchers reviewing historical scientific works or studying classical electromagnetism in traditional textbooks may encounter biot notation.

A megaampere (MA) is a unit of electric current equal to 1,000,000 amperes (1,000 kiloamperes). Megaampere-level currents appear in specialized industrial equipment, electromagnetic forming processes, and experimental physics installations. Pulsed power systems used in research and military applications can generate megaampere currents for brief periods. Z-pinch experiments in plasma physics achieve megaampere currents. The unit appears primarily in specialized research and experimental contexts rather than routine industrial applications.