Enter the String Length, Tension, Density, and Harmonic Number into the Resonance Calculator to find the Resonant Frequency, Harmonics, Wavelength, Wave Speed, and Quality Factor for your vibrating system.
Recommended Wire Size
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Wire Cross-Sectional Area
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Actual Voltage Drop
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Actual Voltage Drop
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Power Loss
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For 12V DC systems, wire size depends on current and distance. For example, a 20A load at 10 feet typically requires 12 AWG copper wire to maintain acceptable voltage drop.
For 30 amp DC circuits, you typically need 10 AWG copper wire for short runs (under 10 feet) or 8 AWG for longer distances to minimize voltage drop.
Generally, 3% voltage drop is recommended for critical loads like lighting, while 5% is acceptable for non-critical loads. Lower voltage drop means better efficiency and performance.
Higher temperatures reduce wire current-carrying capacity (ampacity). Wires in hot environments or bundled together need to be derated, often requiring larger wire sizes.
Copper is preferred for DC systems due to lower resistance and better corrosion resistance. Aluminum requires larger wire sizes but costs less for long runs.
Longer wire runs have higher resistance, causing more voltage drop and power loss. DC systems are more sensitive to voltage drop than AC, making proper sizing critical.
Undersized wire causes excessive voltage drop, reduced equipment performance, overheating, and potential fire hazards. Always use the calculated minimum size or larger.
Yes, DC circuits require both positive and negative conductors. The calculator accounts for the total circuit length (supply and return paths) in voltage drop calculations.