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Circuit components, beams, stress and strain, and fluid flow for engineering coursework.
Electrical
Find the output voltage of a two-resistor divider, or the input voltage or either resistor for a target output, with the divider current and power.
Open tool โElectrical
Decode 4, 5 and 6-band resistor colour codes, or find the bands for a value, plus the nearest standard E12, E24 or E96 value.
Open in Resistor Color Code Calculator โElectrical
Combine capacitors in series or parallel, and work out charge (Q = CV), stored energy, capacitive reactance, and the RC time constant.
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Combine inductors in series or parallel, and work out stored energy, inductive reactance, the RL time constant, and the inductance of an air-core solenoid.
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Solve the power triangle (kW, kVA, kVAR, power factor) from any two values, and size the capacitor needed to correct the power factor.
Open tool โStructures
Analyse a simply supported beam or cantilever under a point load and a uniform load: reactions, maximum shear, bending moment and deflection, with shear force and bending moment diagrams.
Open tool โMaterials
Calculate normal or shear stress from force and area (ฯ = F/A), or stress from strain with Young's modulus (ฯ = Eฮต), in MPa, GPa, psi, or ksi.
Open tool โMaterials
Calculate engineering strain from a change in length (ฮต = ฮL/Lโ), strain from stress with Young's modulus, and lateral strain with Poisson's ratio.
Open tool โFluids
Calculate the Reynolds number for flow in a pipe from velocity, diameter, and viscosity, and see whether the flow is laminar, transitional, or turbulent.
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