Use Ohms law to relate resistance, current and voltage. In National 5 Physics calculate the resistance for combinations of resistors in series and parallel.

Using Ohm’s Law, take 1000 watts divided by 50 ohms = 20. The square root of that is 4.47 amperes. Divide 250 watts by the same 50 ohm antenna resistance and you get 5. The square root of that is ...

Poiseuille’s law Delta P = flow * resistance, where Ohm’s Law Delta V = current flow * resistance. Poiseuille did his work in 1838 and published in 1840. perhaps other way around ...

You ask why, and he says, “Because electricity takes the path of least resistance. Everyone knows that.” Now, you could draw out the bonding circuits and walk him through the Ohm’s Law calculations.

Diagnose electrical problems by chasing voltage drops, instead of the old-fashioned way -- checking continuity. Including Mike Allen's Physics 101 introduction to Ohm's law.

Ohm's law and resistance. All conductors show some opposition to electric current. This opposition to current is called resistance. A good conductor has low resistance.

Ohm's law is a relationship between the voltage across an element, the current going through the element, and the resistance of the thing. You can write it as the following equation.

If you want to measure resistance and you know Ohm’s law, it seems like you have an easy answer, right? Feed a known current through the thing you want to measure and read the voltage required.

Ohm’s Law: Four factors affecting the resistance of a wire are described and students learn how to solve problems using Ohm’s Law. Aired 02/09/2002 | Rating NR About This Episode ...

Ohm's Law. To really kick things off, we will first want to examine Ohm’s Law; in plain English, the law says that the current flow/amperage through a conductor is directly proportional to the voltage ...