1.

Magnetic field due to 0.1 A current flowing through a circular coil of radius 0.1 m and 1000 turns at the centre of the coil is

Answer»

`2xx 10^(-1) T`
`4.31 XX 10^(-2)T`
`6.28 xx 10^(-4)T`
`9.81 xx 10^(-4)T`

SOLUTION :`B = (mu_0 NI)/(2 R) = (4 pi xx 10^(-7) xx 1000 xx 0.1)/(2 xx 01) = 6.28 xx 10^(-4) T`


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