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  • Two concentric coils carry the same current in opposite directions. The diameter of the inner coil is half that of the outer coil. If the magnetic field produced by the outer coil at the common cen

Two concentric coils carry the same current in opposite directions. The diameter of the inner coil is half that of the outer coil. If the magnetic field produced by the outer coil at the common centre is 1 tesla, the net field at the centre is

Option: 1

1 T


Option: 2

2 T


Option: 3

3 T


Option: 4

4 T


Answers (1)

best_answer

\mathrm{B \alpha \frac{1}{r}, \quad 2 T-1 T=1 T}

Posted by

avinash.dongre

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