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Chemistry

Electric Resistance Calculator

Chemistry

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Electric Resistance

Equation and meaning

\[R = \rho \cdot \frac{l}{A}\]

Electric Resistance Where : R is the Resistance,ρ is the Specific Resistance,l is the Length,A is the Area,

Variables in this formula

A — Area
Area SI unit: m²
l — L
Enter this value unless it is the selected unknown.
R — Resistance
Electrical resistance SI unit: Ω
rho — Density
Density SI unit: kg/m³

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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Mathematics

2D-Distance Formula

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\[d = sqrt ( ( ( ( ( x_1 ) - ( x_2 ) ) ) ^ 2 ) + ( ( ( ( y_1 ) - ( y_2 ) ) ) ^ 2 ) )\]
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3D Distance

Mathematics

\[d = sqrt ( ( ( ( ( x_1 ) - ( x_2 ) ) ) ^ 2 ) + ( ( ( ( y_1 ) - ( y_2 ) ) ) ^ 2 ) + ( ( ( ( z_1 ) - ( z_2 ) ) ) ^ 2 ) )\]
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Ampere's Law

Physics

\[\phi = B \cdot dl\]
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Angle of Deviation

Physics

\[\delta = i - r\]
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Angular Momentum

Physics

\[L = I \cdot \omega\]
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Apparent Depth

Physics

\[d_{prime} = \frac{d}{\mu}\]
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