✔ How To Make Resistor Values

How To Make Resistor Values

- July 12, 2017

Then gently file away the resistive material and youll notice the resistance climb. Sometimes you need a resistor with a value you dont have in your kit.

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The standardization of resistor values serves several important purposes.

How to make resistor values. The value of a resistor is given in ohms and is often referred to as its resistance. To create a wirewound resistor one piece of wire would have to serve as the path for the electrical current to flow from one end of the resistor to the other. This helps the supplier to limit the number of different values that have to be produced or kept in stock.

To create a resistor with a larger ohm value use a thinner longer wire. To create a resistor with a small resistance or ohm value use a thicker shorter wire as the path between the two electrical leads. By installing resistors in a parallel or series circuit you can change the value in ohms.

A resistor is a device that opposes the flow of electrical current. Instead of ordering and wanting for a resistor with a value you need you can change the resistance of a resistor by using another resistor or many. When manufacturers produce resistors with different resistance values these end up approximately equally spaced on a logarithmic scale.

When you reach your desired resistance value coat the filed out area of the resistor with some nail polish. Of course you can only make the value rise so you need to choose a resistance value lower than your target value. You will need a few resistors.

If you use two resistor in series it is quite easy to figure out which values give the best match. The bigger the value of a resistor the more it opposes the current flow. Any time you see two or more resistors in series in a circuit you can substitute a single resistor whose value is the sum of the individual resistors.

Similarly any time you see a single resistor in a circuit you can substitute two or more resistors in series as long as their values add up to the desired value. How to calculate and understand resistor values. On the other hand using a parallel connection it is not so easy at least for me to find a good combination.

This resistor calculation tool shows which combinations of two resistors series or parallel.