The diagram shows a current carrying wire passing through the centre of a square cardboard. The magnetic field at points A , B and C is:(1) Equal at A,B and C (2) Stronger at B than A, equal at B and C (3) Stronger at B than C, weaker at B than A (4) Stronger at B than A, weaker at C than A

The diagram shows a current carrying wire passing through the centre o

1.	The diagram shows a current carrying wire passing through the centre of a square cardboard. The magnetic field at points A , B and C is:(1) Equal at A,B and C (2) Stronger at B than A, equal at B and C (3) Stronger at B than C, weaker at B than A (4) Stronger at B than A, weaker at C than A
Answer» (4) Stronger at B than A, weaker at C than A

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The diagram shows a current carrying wire passing through the centre of a square cardboard. The magnetic field at points A , B and C is:(1) Equal at A,B and C (2) Stronger at B than A, equal at B and C (3) Stronger at B than C, weaker at B than A (4) Stronger at B than A, weaker at C than A

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