In a review just published in Nature Materials, researchers take aim at the oldest principle in electronics: Ohm's law.

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

Save guides, add subjects and pick up where you left off with your BBC account. Using Ohm’s Law (V=ꞮR), you can calculate the expected values for voltage, current, and resistance in a circuit ...

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; ...