How to calculate resistor value manually

 · The value of a resistor can be calculated using the colour bands on the resistors casing, find out what each colour means and how to read them with this tutorial. Resistor tolerances, a worked example, the resistor preferred value system and some tasks for you to try are also www.doorway.rus: Parallel resistor calculator Provide all of the resistance values in parallel, separated by a comma "," and click the "Calculate" button to determine total resistance. 10,2,38,23,38,23, To calculate the value of the series resistor, use the following steps: The voltage of the supply splits up across components in series, so the voltage across the resistor is \((9 - 2) = 7 V\).

Resistor Calculator. The following are tools to calculate the ohm value and tolerance based on resistor color codes, the total resistance of a group of resistors in parallel or in series, and the resistance of a conductor based on size and conductivity. The first two digits indicate the resistance value—while the third digit is the multiplier. Resistor color code for Ohms. For example: “” = 48 x ohms = kiloΩ. If the resistors have values less than Ω, you can write it as: “” = 48 x 10 0 (which is equivalent to 1) = 48 x 1Ω = 48Ω or 48RΩ. Read approximate value from color coding or set to a medium value. Hold two probes against the resistor’s two legs on a flat non-conductive surface. If the reading comes in decimal like , then you can move the dial of multimeter to the next lowest value written on the multimeter. It will become like

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