Calculates the resistance and the global dissipated power of two or more resistors connected in parallel, this configuration is normally used to obtain not standard ohmic values or high power.

Data input

Dissipable nominal power of each resistor

W

Insert only needed resistors keep the other null.

Value resistor R1

ohm

Value resistor R2

ohm

Value resistor R3

ohm

Value resistor R4

ohm

Value resistor R5

ohm

Results |
|||

Global value of the resistors | ohm | ||

Global dissipable power by the resistors | W |

**Notes.**

- The global value of the dissipable power refers to the nominal inserted (1/4 di W = 0.25W - 1/2W = 0.5W etc...), obviously it is only a limit value that you must not reach, expecially for high ambience temperatures, it directly influence on the useful life of the resistors.
- Nominal power dissipable by the resistors refers to 25 °C ambient, with positioning in free air and functioning into tolerance guaranteed for x hours.
- To calculate resistors pack of higher number is necessary to proceed with multi-step procedure: calculate the first group and store the values, calculate the second and store the values, at the end insert the values of the first and the second calculate to obtain the resistance and the global dissipable power.

Instructions

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Notices

Apps for the resistances.

Parallel resistors.

Series resistors.

Capacitive reactance.

Inductive reactance.