Convert Biot to Milliampere (Bi to Milliampere)

Biot (Bi) and Milliampere (Milliampere) are both units of current. With the conversion form below, you can effortlessly and accurately convert biot to milliampere. This free online calculator tool makes it simple and easy to perform the conversion from Bi unit to the Milliampere 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 milliampere (mA) is a unit of electric current equal to one thousandth of an ampere (10^-3 amperes). Milliamperes are standard in electronic circuits, consumer electronics, and biomedical devices. Battery chargers, LED circuits, and medical equipment like TENS units operate at milliampere ranges. The milliampere is practical and widely understood in electronics, appearing on device specifications, user manuals, and equipment labels. Battery capacity is often rated in milliampere-hours (mAh), making the unit familiar to anyone using rechargeable devices.