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Formula Library

Searchable knowledge base of formulas — each with its own page, linked tools, and related formulas.

22 formulas

Electricity & magnetism (2)

2 matches· Electricity & magnetism

Electricity & magnetism

2
  • Wavelength and frequencyf = c / λ, with c ≈ 299,792,458 m/s (speed of light in vacuum)Convert between electromagnetic frequency and wavelength in free space.Specialty
  • AWG wire gauge diameterd_mm = 0.127 × 92^((36 − AWG) / 39)Map AWG number to conductor diameter in millimeters.Specialty

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  • Percentage proportionamount = (percent / 100) × whole→
  • Arithmetic and weighted meanmean = sum / count · weighted = Σ(x w) / Σw→
  • Exponentiationbase^exponent = result→
  • Fraction arithmetica/b ± × ÷ c/d → reduced form→
  • Number base conversionRead digits in the source base, then rewrite the same integer in the target base→
  • Percent errorpercent error = |observed − true| / |true| × 100%→

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  • Percentage proportionamount = (percent / 100) × whole
  • Arithmetic and weighted meanmean = sum / count · weighted = Σ(x w) / Σw
  • Exponentiationbase^exponent = result
  • Fraction arithmetica/b ± × ÷ c/d → reduced form
  • Number base conversionRead digits in the source base, then rewrite the same integer in the target base
  • Wavelength and frequencyf = c / λ, with c ≈ 299,792,458 m/s (speed of light in vacuum)
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