BY JAVON RUBIN
- A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.
- Resistors act to reduce current flow, and, at the same time, act to lower voltage levels within circuits.
- An electric component that transmits current in direct proportion to the voltage across it.
Appears in these related concepts:
Resistor Color Code
Ohm's law states that the voltage (V) across a resistor is proportional to the current (I), where the constant of proportionality is the resistance (R).
Equivalently, Ohm's law can be stated:
- Ohm's Law refers to the proportion relation between voltage and current. It also applies to the specific equation V=IR, which is valid when considering circuits that contain simple resistors
There are components and circuits that are non-ohmic; their I-V plots are not linear and/or don't pass through the origin.