Ohm S Law Triangle Formula

Ohms law pie.

Ohm s law triangle formula. Use your hand to cover the letter you want to find. Ohm s law may sound a bit confusing when written in words but it can be described by the simple formula. Ohms law pie chart. You can switch it around and get r v i or i v r.

This ohm s law triangle graphic is also helpful to learn the formulas. As long as you have two of the variables you can calculate the last. Simple to use ohm s law calculator. Where i current in amps v voltage in volts and r resistance in ohms this same formula can be also be written in order to calculate for the voltage or the resistance.

How to use it. I use it very often. This is sometimes known as the ohm s law triangle. Just cover the unknown value and follow the graphic as in the yellow wheel examples above.

When current and resistance are given use v ir to calculate voltage. Let s take a look at formulas. In the top corner of the ohms law triangle is the letter v in the left hand corner the letter i and in the right hand bottom corner r. Ohm s law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

Ohm s law formula helps to calculate voltage current and resistance. You can use this triangle to remember ohm s law. Where i is the current through the conductor in units of amperes v is the voltage measured across the conductor in. Calculate power current voltage or resistance.

Just enter 2 known values and the calculator will solve for the others. You ll have to insert the x between the i and r in the graphic and imagine the horizontal divide line but the principal is just the same. The above triangle can easily be used to obtain three equations. By lumping ohm s law with joules law one can easily achieve the formula for power.

It is the formula in electronics. Introducing the constant of proportionality the resistance one arrives at the usual mathematical equation that describes this relationship. Let s consider a triangle with three labels v i and r. To help remember the formula it is possible to use a triangle with one side horizontal and the peak at the top like a pyramid.