Final answer:
Magnetic strength in the English system of measurement is often referred to as Gauss. One gauss is 1/10,000 of a tesla, the standard SI unit for magnetic field strength.
Gauss is used for smaller fields while tesla is preferred for larger or scientific measurements.
Step-by-step explanation:
In the English system of measure, magnetic strength is often measured in a term called Gauss (G). One gauss is equal to 1/10,000 of a tesla (T), which is the SI unit for magnetic field strength B.
The magnetic field strength around a long straight current-carrying wire is determined experimentally and can be measured in gauss or tesla. While the tesla is more commonly used in scientific contexts, the gauss is sometimes used when referring to smaller magnetic fields.
For example, Earth's magnetic field on its surface is about 0.5 G, whereas the strongest permanent magnets have fields near 2 T, and superconducting electromagnets may attain fields of 10 T or more. The strength of a magnetic field is also related to the permeability of free space (magnetic constant μo), which finds application in Gauss's law for magnetism.
In the English system of measure, magnetic strength is measured in a term called Gauss (option A). The gauss (G) is a smaller unit used to measure magnetic field strength. One gauss is equal to 10-4 tesla (T). The strongest permanent magnets can have a magnetic field strength near 2 T.