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Please i need help with physics!?

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Find the magnetic field 7.44 cm from a long, straight wire that carries a current of 5.78 A.

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  1. The magnetic field is given by:

    β = μI / (2π r)

    Where:

    μ = permeability of free space

    μ  = 4π e-7 T m / A

    β = (4π e-7 T m / A) 5.78 A / (2π 0.0744 m)

    I'll let you do the math and check the units.

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