What can you say about the magnetic field at the centre of a current carrying cube made of twelve wires?

net magnetic field will be zero

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net magnetic field will be outwards

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net magnetic field will be inwards

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none of these

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Solution

The correct option is A
net magnetic field will be zero

The given system can be regarded as a set of six current carrying pairs. The contribution of each pair is zero. So the net magnetic field induction at the centre is zero.

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Similar questions

A circular wire fo radius 'R' carries a current 'i'. What will be the magnetic field at its centre?

B

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