Magnetic fields ($\\mathbf{B}$) are created exclusively by what phenomenon?
Answer
Moving electric charges, defined as an electric current.
Magnetic fields are created exclusively by moving electric charges, which is defined as an electric current. A stationary charge generates zero magnetic field.
Frequently Asked Questions
What fundamentally generates an electric field ($\\mathbf{E}$)?Magnetic fields ($\\mathbf{B}$) are created exclusively by what phenomenon?If a charged particle is completely stationary ($\\mathbf{v}=0$) within a strong magnetic field, what magnetic force does it experience?How do magnetic field lines fundamentally differ from electric field lines regarding their topology?What constraint does the magnetic force place on changing a moving charge's speed?According to Faraday's Law, what induces a circulating electric field?Which unit is used to quantify electric field strength ($\\mathbf{E}$)?What mechanism causes energy transfer between adjacent signal traces due to time-varying magnetic fields?What principle reconciles the force experienced by a charged particle when observed from different inertial frames?Which of the following statements is true regarding static fields and radiation?In the equation $\\mathbf{F}_E = q\\mathbf{E}$, what is the direction of the force relative to the electric field lines?