A coil wrapped around a toroid has inner radius of `15cm` and outer radius of `20cm`. If the toroid has `1000` turns of wire and carries a current of `12A`, find the maximum and minimum values of magnetic field within the toroid.

A coil wrapped around a toroid has inner radius of `15cm` and outer ra

1.	A coil wrapped around a toroid has inner radius of `15cm` and outer radius of `20cm`. If the toroid has `1000` turns of wire and carries a current of `12A`, find the maximum and minimum values of magnetic field within the toroid.
Answer» Here, `r_1=15cm=015m`, `r_2=20cm=020m`, `N=1000`, `I=12A` `B_(max)=mu_0(N)/(2pir_1)I=((4pixx10^-7)xx1000xx12)/(2pixx015)` `=16xx10^-2T` `B_(min)=mu_0(N)/(2pir_2)I=((4pixx10^-7)xx1000xx12)/(2pixx020)` `=12xx10^-2T`

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A coil wrapped around a toroid has inner radius of `15cm` and outer radius of `20cm`. If the toroid has `1000` turns of wire and carries a current of `12A`, find the maximum and minimum values of magnetic field within the toroid.

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