What resistance is and factors that affect it, and how it can be advantageous and disadvantageous.
Learn more about superconductors, which have virtually no resistance when they are cooled to extremely low temperatures.
Reviews the definition of electric resistance, factors that affect electric resistance, and how electric resistance can be a drawback or a benefit.
Discover what resistors are, how they work, and how to use Ohm's law to find the size of resistor needed for a particular device.
Learn more about how resistors work with this simulation of a battery and resistor circuit.