A Weber is the standard unit of magnetic flux. It is defined as the magnetic flux needed to produce one volt of electromagnetic force in one turn of wire, when the flux is constantly reduced to zero over a period of one second. The symbol for weber is Wb.

History of the Weber

The Weber was first defined at an international conference in 1881, and is named after Wilhelm Eduard Weber (1804-1891), a German physicist. It was later amended in 1933 to it's current definition.

Measuring Webers

The strength and direction of magnetic flux density is measured in Teslas using a magnetometer, which is sometimes called a gaussmeter. To calculate the total magnetic flux in Webers, the surface area of the magnetic flux needs to be calculated.

Other Units

The Maxwell is another unit of magnetic flux equal to about one hundred-millionth of a Weber. The Tesla is a unit of magnetic flux density equal to one Weber per square meter. The Gauss is another unit of magnetic flux density equal to a ten-thousandth of a Tesla.