FIG:--1Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that:

The potential difference (voltage) across an ideal conductor is proportional to the current through it.

The constant of proportionality is called the "resistance", R.

Ohm's Law is given by:

V = I R

I = V / R

R = V / I



Here in that we have all units of resisiter,capester and inductor


Circuit for Ohm's law
<p>Nice Job explaining this!</p><p>Here is another interesting formula we can find.</p><p>To find Power P = IxV (in Watts)</p><p>Here is an example:</p><p>Suppose we want to limit the current flowing through an LED to 10 milliamps.</p><p>We are using the 5 volt supply on the Arduino board.</p><p>We have a variety of resistors in our parts box.</p><p>From a quick mental calculation we can see that for every 100 ohms we will be letting 50 ma through the LED.</p><p>So we need something over 400 ohms.</p><p><br>From the yellow circle above let's try a common 470 ohm resistor.</p><p>I = 5/470</p><p>I = 10.6ma</p><p>And by calculating P we can see that the LED is consuming about 53mw</p><p>Perfect!</p>

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