Determine the value of the magnetic induction at a distance of 3 cm from a straight wire with a current of 150A.
| February 7, 2021 | education
Magnetic induction B at a distance R from a conductor with a current I:
B = (m₀ * I) / (2 * pi * R), where m₀ is the magnetic constant (m₀ = 4 * pi * 10⁻⁷ H / m);
(4 * pi * 10⁻⁷ H / m * 150 A) / (2 * pi * 0.03 m) = ((2 * 10⁻⁷ * 150) / 0.03)) T = 0.001 T.
Answer: The magnetic induction is 0.001 T.
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