Answer to Question #193138 in Electricity and Magnetism for Blank 0822

Electricity and Magnetism

Question #193138

A toroidal solenoid has 3000 turns and a radius of 2cm with a current of 5A flowing through it. Determine the magnitude of the magnetic field.

Expert's answer

"B=\\frac{\\mu_0 nI}{2\\pi r}=\\frac{2\\cdot 10^{-7}\\cdot 3000\\cdot 5}{0.02}=0.15~T."

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