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Two concentric circular coils of ten turns each are situated i

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Two concentric circular coils of ten turns each are situated in the same plane. Their radii are $20$ and $40 c m$ and they carry respectively $0.2$ and $0.3$ ampere current in opposite direction. The magnetic field in $W b / m^{3}$ at the centre is

\frac{35}{4} μ_{0}

\frac{μ _{0}}{80}

\frac{7}{80} μ_{0}

\frac{5}{4} μ_{0}

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Two concentric circular coils of ten turns each are situated in the same plane. Their radii are

20

and

40 c m

and they carry respectively

0.2

and

0.3

ampere current in opposite direction. The magnetic field in

W b / m^{3}

at the centre is

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Question Text	Two concentric circular coils of ten turns each are situated in the same plane. Their radii are $20$ and $40 c m$ and they carry respectively $0.2$ and $0.3$ ampere current in opposite direction. The magnetic field in $W b / m^{3}$ at the centre is
Answer Type	Video solution: 1
Upvotes	154