What causes the granular structure on the sun's photosphere?
1 answer:
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The current in the coil is 297 A
Explanation:
The magnetic field of a circular coil carrying a current is given by
where
is the vacuum permeability
N is the number of turns in the coil
I is the current in the coil
R is the radius of the coil
For the coil in this problem, we have:
R = 20 cm = 0.20 m
N = 15
Solving the equation for I, we find the current in the coil:
Learn more about magnetic fields:
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