Question

how we can calculate magnetic field
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Answer 1

the turn density is n=N/L= turns/m. The Earth's magnetic field is about half a gauss. The relative permeability of magnetic iron is around 200. Enter data, then click on the quantity you wish to calculate in the active formula above the data entry points.

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Answer 2

The magnitude of the magnetic field depends on the amount of the current, and the distance from the charge carrying wire . The formula includes the constant . This is called permeability of free space . magnetic field is the tesla. formula for magnetic field is :

B = mew notI/2πr.

where as B is the field magnitude

mew not is the permeability of free space (4πr×10^-7T.m/A) .

I is the magnitude of the electric current.

r is the distance....