Which quantity represents the measure of a quantity of magnetism?

• A. Tesla
• B. Weber
• C. Newton
• D. Watt

Answer: (B)

The correct choice is a unit of magnetic flux and is essential in understanding the concept of magnetism in electrical science. The Weber is defined as the magnetic flux that, when linked with a circuit of one turn, induces an electromotive force of one volt as it is reduced to zero in one second. This relationship between magnetic flux and induced voltage is critical in various applications, including electric generators and transformers, making Weber a foundational unit in the study of magnetism and electrical engineering.

The other units listed pertain to different physical quantities: Tesla measures magnetic flux density or magnetic field strength, Newton measures force, and Watt measures power. Each of these units represents different aspects of physics, but they do not define the measure of a quantity of magnetism like the Weber does.