Unit Information
Millitesla
A unit of magnetic flux density equal to one thousandth of a tesla (10⁻³ T). Commonly used for measuring moderate magnetic fields in industrial applications and medical devices.
Gauss
The CGS unit of magnetic flux density. One gauss is equal to 10⁻⁴ tesla. Named after Carl Friedrich Gauss, commonly used in older scientific literature and some engineering fields.
Conversion Tips
- Remember to check your decimal places for accuracy.
- This conversion is commonly used in international applications.
- Consider the context when choosing precision levels.
- Double-check calculations for critical applications.
Learn More About Magnetic_field
Scientific Overview
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. It is produced by moving charges and the intrinsic magnetic moments of elementary particles.
Historical Background
Ancient civilizations knew about naturally magnetic lodestone. William Gilbert published "De Magnete" in 1600, establishing terrestrial magnetism. Hans Christian Ørsted discovered electromagnetism in 1820, and James Clerk Maxwell unified electricity and magnetism mathematically.
Real-World Applications
Electric Motors
Convert electrical energy to mechanical motion using magnetic fields.
MRI Technology
Medical imaging using strong magnetic fields and radio waves.
Data Storage
Hard drives and magnetic tapes use magnetic fields for information storage.
Power Generation
Generators produce electricity through electromagnetic induction.
Particle Accelerators
Use magnetic fields to steer and focus charged particles.
Interesting Facts
- Earth's magnetic field protects us from solar radiation.
- MRI machines use magnetic fields millions of times stronger than Earth's.
- Some animals can detect magnetic fields for navigation.
- Magnetic fields are used in maglev trains for frictionless transportation.
- Sunspots are associated with intense magnetic fields.
Key Formulas
Magnetic Force
F = q(v × B)Biot-Savart Law
dB = (μ₀/4π)(Idl × r)/r³Ampere's Law
∮B·dl = μ₀IFaraday's Law
ε = -dΦ_B/dtMagnetic Flux
Φ_B = ∫B·dA