What is the current density in a wire if the cross-sectional area of the wire is 10 mm and the current is 50 A?
| September 23, 2021 | education
Initial data: S (cross-sectional area of the taken wire) = 10 mm2 (10 * 10 ^ -6 m2); I (current in the wire) = 50 A.
The current density in the wire taken can be calculated using the formula: j = I / S.
Calculation: j = 50 / (10 * 10 ^ -6) = 5 * 10 ^ 6 A / m2 (5 MA / m2).
Answer: The current density in the wire taken is 5 MA / m2.
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