Question: An electric current is uniformly distributed throughout a long, straight wire that has a diameter of (10 mathrm{~mm}). If the current through the wire is

An electric current is uniformly distributed throughout a long, straight wire that has a diameter of $10 \mathrm{~mm}$. If the current through the wire is $3.0 \mathrm{~A}$, calculate the magnitude of the magnetic field

(a) $4 \mathrm{~mm}$ radially away from the wire center

(b) $12 \mathrm{~mm}$ radially away from the wire center.

(c) What must the current be to create a magnetic field of magnitude $10^{-2} \mathrm{~T}$ at a distance of $5 \mathrm{~cm}$ from the wire center?

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To calculate the magnitude of the magnetic field at different distances from the wire center we can use Amperes law for a long straight wire The formu... View full answer

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