The polarity of sunspot magnetic fields:

Question

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The polarity of sunspot magnetic fields reverses every 11 years. This pattern is known as the solar cycle, which is marked by an increase in the number of sunspots, followed by a decrease, and then a new cycle begins with reversed magnetic polarity. The polarity of sunspot magnetic fields reverses every 11 years, corresponding to the 11-year solar cycle. This means that after 11 years, the magnetic field of a sunspot will flip, with the north pole becoming the south pole and vice versa. This is observed consistently across all sunspots during the solar cycle.

The Polarity of Sunspot Magnetic Fields