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Gre4nikov [31]
4 years ago
5

Which feature of the sun appears in cycles of about 11 years?

Physics
1 answer:
goldfiish [28.3K]4 years ago
8 0
The Sun's magnetic field goes through a cycle, called the solar cycle. Every 11 years or so, the Sun's magnetic field completely flips. This means that the Sun's north and south poles switch places. Then it takes about another 11 years for the Sun's north and south poles to flip back again.
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The total electric potential at the center of the square due to the four charges is V  = √2Q/πÈa.

<h3>What do you mean by electric potential? </h3>

The amount of work needed to move a unit charge from a reference point to a specific point against an electric field. It's SI unit is volt.       

V = kq/r

Where V represents electric potential, K is coulomb constant, q  is Charge and r is distance between any  two around charge to the point charge.

Electric potential at O due to four charges is given by,

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The total electric potential at the center of the square due to the four charges is V  = √2Q/πÈa.

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brainly.com/question/12645463

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