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"The magnetic field at the center of a 50-turn coil of radius 15 cm is 0.60mT. find the current in the coil."
N=50, r = .15m, B = 6.0 * 10^-4 T, magnetic permeability = 4 * pi * 10^-7.
B = (mag.per. * N * I)/ L
However, I don't have L, which is the length. I do have r, the radius, but it's not in the equation... How do i solve this?
N=50, r = .15m, B = 6.0 * 10^-4 T, magnetic permeability = 4 * pi * 10^-7.
B = (mag.per. * N * I)/ L
However, I don't have L, which is the length. I do have r, the radius, but it's not in the equation... How do i solve this?