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Derived units — heat, electricity & magnetism, light formulas

22 formulas for Derived units — heat, electricity & magnetism, light, from the Physics — Units, Dimensions & Constants section of the Quantix formula library. Tap 🧮 next to a formula to solve it for any variable with step-by-step working.

NameFormulaNote
Specific heat capacityJ/(kg·K)[L² T⁻² K⁻¹]
Latent heatJ/kg[L² T⁻²]
Thermal conductivityW/(m·K)[M L T⁻³ K⁻¹]
EntropyJ/K[M L² T⁻² K⁻¹]
Electric chargecoulomb (C) = A·s[A T]
Potential difference / EMFvolt (V) = J/C = W/A[M L² T⁻³ A⁻¹]
Resistanceohm (Ω) = V/A[M L² T⁻³ A⁻²]
ResistivityΩ·m[M L³ T⁻³ A⁻²]
Conductancesiemens (S) = Ω⁻¹[M⁻¹ L⁻² T³ A²]
Capacitancefarad (F) = C/V[M⁻¹ L⁻² T⁴ A²]
Inductancehenry (H) = V·s/A[M L² T⁻² A⁻²]
Magnetic fluxweber (Wb) = V·s[M L² T⁻² A⁻¹]
Magnetic field (flux density)tesla (T) = Wb/m²[M T⁻² A⁻¹]
Electric fieldN/C = V/m[M L T⁻³ A⁻¹]
PermittivityF/m = C²/(N·m²)[M⁻¹ L⁻³ T⁴ A²]
PermeabilityH/m = N/A²[M L T⁻² A⁻²]
Electric dipole momentC·m[L T A]
Luminous fluxlumen (lm) = cd·sr
Illuminancelux (lx) = lm/m²
Power of a lensdioptre (D) = m⁻¹[L⁻¹]
Radioactivitybecquerel (Bq) = s⁻¹1 Ci = 3.7 × 10¹⁰ Bq
Absorbed dosegray (Gy) = J/kg

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