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A toroid has core (non-ferromagnetic ) of inner radius 25 cm and outer radius 26 cm, around which 3500 turns of a wire are wound. If the current in the wire is 11 A, what is the magnetic field (i) outside the toroid , (ii) insidethe core of the toroid, and (iii)in the empty space surrounded by the toroid. |
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Answer» SOLUTION :i. ZERO `II. B=mu_0 NI = (4pi xx 10^(-7) xx 3500 xx 11)/(2 pi xx 25.5 xx 10^(-2))=3.0 xx 10^(-2) T` iii. Zero |
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