What is the unit for magnetic flux?

What is the unit for magnetic flux?

• A. Henry (H)
• B. Weber (Wb)
• C. Tesla (T)
• D. Farad (F)

Answer: (B)

The unit for magnetic flux is the Weber (Wb). Magnetic flux represents the total magnetic field passing through a given area, and it is defined mathematically as the product of the magnetic field (B) and the area (A) through which it passes, taking into account the angle between the field lines and the normal to the surface. The Weber is derived from fundamental SI units and is expressed as one volt-second. Specifically, one Weber is the amount of magnetic flux that, when reduced at a uniform rate through a single loop of wire over one second, induces an electromotive force of one volt in the loop. This relationship highlights the significance of the Weber in both magnetic and electromagnetic concepts. The other choices represent different physical quantities: the Henry is the unit of inductance, the Tesla is the unit of magnetic field strength, and the Farad is the unit of capacitance. Each of these units serves to measure different properties in the realms of electrical and magnetic fields, but only the Weber is relevant for measuring magnetic flux specifically.

The unit for magnetic flux is the Weber (Wb). Magnetic flux represents the total magnetic field passing through a given area, and it is defined mathematically as the product of the magnetic field (B) and the area (A) through which it passes, taking into account the angle between the field lines and the normal to the surface.

The Weber is derived from fundamental SI units and is expressed as one volt-second. Specifically, one Weber is the amount of magnetic flux that, when reduced at a uniform rate through a single loop of wire over one second, induces an electromotive force of one volt in the loop. This relationship highlights the significance of the Weber in both magnetic and electromagnetic concepts.

The other choices represent different physical quantities: the Henry is the unit of inductance, the Tesla is the unit of magnetic field strength, and the Farad is the unit of capacitance. Each of these units serves to measure different properties in the realms of electrical and magnetic fields, but only the Weber is relevant for measuring magnetic flux specifically.