The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is . What will be its value at the centre of the loop ?
As we discussed in
Magnetic Field at the axis due to circular current carrying wire -
N is numbers of turn in coil
Magnetic Field due to Circular Current at the centre -
If a coil of radius r is carrying current i then magnetic feild at a distnace X from its centre is:
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