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A current of 2 A is flowing through a cjrcular coil of radius 10 cm containing 100 turns. Find the magnetic flux density at the centre of the coil. |
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Answer» Solution :Given i = 2A , r =10 cm ` = 10 xx 10^(-2) m , N = 100` Flux DENSITY at the centre of .N. turn COIL is given by, `B = N (mu_0i)/(2R) = 100 xx (2pi xx 10^7 xx 2)/(10 xx 10^(-2))` `= 1.26 xx 10^(-3) Wb//m^2` |
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