= Solar magnetic field
{title2=$\mathbf B_\odot$}
The solar magnetic field is generated and maintained by electrically conducting flows through <solar dynamo> action. It includes a large-scale approximately dipolar component near activity minimum and strong, intermittent fields in active regions and <sunspots>. Its organized polarity reversals define the magnetic <solar cycle>. Magnetic stresses modify the generating flows, so a saturated dynamo requires nonlinear feedback as well as magnetic induction.
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