PHYSICS / ELECTRICAL CIRCUITS
Estimate round-trip DC conductor voltage drop from current, length, resistivity, and cross-sectional area. Inspect the SI equation, substituted inputs, derived result, and physical limitations in one guided workspace.
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Estimate round-trip DC conductor voltage drop from current, length, resistivity, and cross-sectional area. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
Delta V=I(2 rho L/A)
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The two conductors share uniform area and temperature; contacts, AC impedance, and allowable-code limits are excluded.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors