<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> A resistor--inductor circuit (RL circuit), or RL filter or RL network, is an electric circuit composed of resistors and inductors driven by a voltage or current source . A first - order RL circuit is composed of one resistor and one inductor and is the simplest type of RL circuit . </P> <P> A first order RL circuit is one of the simplest analogue infinite impulse response electronic filters . It consists of a resistor and an inductor, either in series driven by a voltage source or in parallel driven by a current source . </P>

What is meant by the statement that the circuit is a rl circuit