Resistivity and conductivity

The calculator calculates the resistivity and conductivity of the material from the resistance, cross-sectional area and the length of the element at 20 ° C.

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Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.

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Parallel connection of resistors

The calculator calculates the equivalent resistance of two resistors connected in parallel.

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Associated force of the hydraulic piston and the cylinder

Hydraulic cylinder is a mechanical akutatorem used for power transmission line by a linear thrust. Through the movement of the piston up and down over the forces and pressure. This calculator is used to calculate the two forces given angle for each operation.

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Cost of online advertising

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ROCE - an indicator of the efficiency of investment

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Number of square-triangle (square triangular number)

Number of square-triangle has the properties of a square and a triangular number.

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Excise tax refund calculator in Poland

Calculator based on the specified value of the car, paid tax engine calculates the amount of refund of excise duty.