What is the SI unit of magnetic flux?
Ampere
Tesla
Weber
Henry
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Units of Magnetic Flux – Definition, List of Units, Conversion Chart
What is the Unit of Magnetic Flux?
The unit of magnetic flux is the weber (Wb). It is defined as the magnetic field passing through a surface perpendicular to the magnetic field lines. The formula to calculate magnetic flux (Φ) is:
Where:
Φ is the magnetic flux in webers (Wb).
B is the magnetic field strength in teslas (T).
A is the area perpendicular to the magnetic field lines in square meters (m²).
SI Unit and CGS Unit of Magnetic Flux
The SI unit of magnetic flux is the weber (Wb). It measures the amount of magnetic field passing through a surface. The formula for magnetic flux (Φ) is Φ=B × A, where 𝐵B is the magnetic field strength in teslas (T) and 𝐴 is the area perpendicular to the field lines in square meters (m²).
Units of Magnetic Flux in MKS System
In the MKS (meter-kilogram–second) system, the unit of magnetic flux is the weber (Wb). It represents the magnetic flux that passes through an area perpendicular to a magnetic field of one tesla (T) and one square meter (m²). The weber is a fundamental unit in electromagnetism and is commonly used in physics, engineering, and related fields.
SI Sub Multiples of Magnetic Flux :
| Submultiple | Symbol | Equivalent |
|---|---|---|
| Milliweber | mWb | 0.0010.001 Wb |
| Microweber | μWb | 0.0000010.000001 Wb |
| Nanoweber | nWb | 0.0000000010.000000001 Wb |
| Picoweber | pWb | 0.0000000000010.000000000001 Wb |
SI Multiples of Magnetic Flux :
| Multiple | Symbol | Equivalent |
|---|---|---|
| Kiloweber | kWb | 1,0001,000 Wb |
| Megaweber | MWb | 1,000,0001,000,000 Wb |
| Gigaweber | GWb | 1,000,000,0001,000,000,000 Wb |
| Teraweber | TWb | 1,000,000,000,0001,000,000,000,000 Wb |
List of Magnetic Flux Units
| Weber | Wb | SI unit, measures magnetic flux. |
| Kiloweber | kWb | Equivalent to 103103 webers. |
| Megaweber | MWb | Equivalent to 106106 webers. |
| Gigaweber | GWb | Equivalent to 109109 webers. |
| Tesla Square Meter | T·m² | Represents magnetic flux in terms of teslas and square meters. |
| Maxwells | Mx | CGS unit, equivalent to 10−810−8 webers. |
| Gauss Square Centimeter | G·cm² | Represents magnetic flux in terms of gauss and square centimeters. |
| Gauss Square Millimeter | G·mm² | Represents magnetic flux in terms of gauss and square millimeters. |
Conversion of Magnetic Flux
| Magnetic Flux Conversion | Conversion Factor |
|---|---|
| Weber to Maxwells | 1 Weber (Wb) = 10⁸ Maxwells (Mx) |
| Maxwells to Weber | 1 Maxwell (Mx) = 10⁻⁸ Weber (Wb) |
| Weber to Tesla Square Meters | 1 Weber (Wb) = 1 Tesla Square Meter (T·m²) |
| Tesla Square Meters to Weber | 1 Tesla Square Meter (T·m²) = 1 Weber (Wb) |
Weber (Wb) to Maxwells (Mx)
One weber (Wb) is equivalent to 10⁸ maxwells (Mx). This conversion factor simplifies transitioning between the International System of Units (SI) and the CGS unit of magnetic flux.
Maxwells (Mx) to Weber (Wb)
One maxwell (Mx) is equivalent to 10⁻⁸ webers (Wb). This conversion factor is commonly used in the centimeter-gram-second (CGS) system for measuring magnetic flux.
Weber to Tesla Square Meters
One weber (Wb) is equivalent to one tesla multiplied by one square meter (T·m²). This relationship quantifies the magnetic flux passing through a surface perpendicular to a magnetic field.
Tesla Square Meters (T·m²) to Weber (Wb)
Tesla square meters (T·m²) is a unit used to express magnetic flux. To convert to webers (Wb), simply multiply the value in T·m² by the area to obtain the flux in webers (Wb).
FAQ’s
What is magnetic flux and its unit?
Magnetic flux is a measure of the quantity of magnetic field passing through a given surface. It represents the number of magnetic field lines penetrating a surface. The unit of magnetic flux in the International System of Units (SI) is the weber (Wb).
Why is magnetic flux important?
Understanding magnetic flux is crucial in various fields, including physics, engineering, and technology. It plays a key role in designing electrical devices, studying magnetic materials, and analyzing electromagnetic phenomena.
What are some applications of magnetic flux?
Magnetic flux is applied in various technologies, including transformers, electric motors, generators, magnetic resonance imaging (MRI) machines, and magnetic data storage devices.
What factors affect magnetic flux?
The magnitude of magnetic flux depends on the strength of the magnetic field and the size of the area through which the field passes. It also depends on the orientation of the surface relative to the magnetic field lines.
How does magnetic flux relate to electromagnetic induction?
Magnetic flux plays a central role in electromagnetic induction, where changing magnetic flux induces an electromotive force (EMF) in a conductor, according to Faraday’s law of electromagnetic induction.
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Practice Test
Which of the following units is equivalent to 1 Weber?
Volt-second
Ampere-second
Joule per Coulomb
Tesla-meter
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What is the unit used to measure magnetic flux density?
Tesla
Weber
Newton
Coulomb
of 10
Which unit is used to measure magnetic field strength?
Weber
Tesla
Ampere per meter
Ohm
of 10
If 1 Tesla represents 1 Weber per square meter, how is flux density related to flux?
Flux density is the flux per unit length
Flux density is the flux per unit time
Flux density is the flux per unit area
Flux density is the flux per unit volume
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Which of the following is the correct unit for measuring magnetic flux in the cgs system?
Gauss
Maxwel
Tesla
Weber
of 10
What does the unit of Weber measure in terms of magnetic fields?
Magnetic field strength
Magnetic flux
Magnetic flux density
agnetic potential
of 10
If the magnetic flux through a surface is 5 Webers and the area is 2 square meters, what is the flux density?
2.5 T
10 T
5 T
1 T
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What unit is used to express the strength of a magnetic field in the cgs system?
Tesla
Gauss
Weber
Ampere per meter
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Which unit is most appropriate for measuring the magnetic flux through a large area?
Weber
Gauss
Tesla
Ampere per meter
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