Mechanics, electricity, optics and other physics calculations.
Convert between magnetic permeability (µ), relative permeability (µr) and magnetic susceptibility (χ) using χ = µ/µ₀ − 1.…
Calculate the unknown resistance in a balanced Wheatstone bridge (Rx = R2·R3/R1) or the output voltage of an unbalanced bridge.…
Calculate the charge and discharge time of a capacitor from resistance and capacitance. Find the time constant (τ = R × C),…
Find the correct current-limiting resistor for your LED circuit. Calculate the required resistance and the power dissipation…
Calculate the equivalent inductance of up to 10 inductors connected in parallel using 1/L = 1/L₁ + 1/L₂ + … Also find a missing…
Find the Q-point of an NPN or PNP bipolar junction transistor. Calculate base, collector and emitter currents, V_CE, the…
Calculate the MOSFET drain current for NMOS and PMOS transistors. Automatically detects the operating regime (cut-off, triode,…
Decode 3-digit capacitor codes, convert a capacitance into a capacitor code, and find the stored charge with Q = C × V and…
Calculate the equivalent capacitance of up to 10 capacitors connected in parallel. Capacitances simply add: C = C1 + C2 +…
Calculate the required first-cell wall distance (Δy) for a target y+ in your CFD mesh. Computes Reynolds number, skin friction…
Calculate the current flowing through each branch of a resistive, capacitive or inductive current divider. Get the branch…
Calculate every property of a hydraulic jump in a rectangular open channel: upstream and downstream Froude numbers, sequent…
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