What characteristic of the RLC circuit is typically examined with a step input?

The characteristic of the RLC circuit that is typically examined with a step input is the transient response.

Here are the steps to examine it:

1. Apply a step input to the RLC circuit. A step input is a sudden change in the input, such as a sudden increase or decrease in voltage.

2. Observe the circuit's response over time. This is the transient response, which shows how the circuit responds to sudden changes in input.

3. The transient response of an RLC circuit typically involves an initial overshoot, followed by an oscillation, and then a gradual settling to the final value. The speed and manner in which the circuit settles to its final value is determined by the values of resistance (R), inductance (L), and capacitance (C) in the circuit.

4. By examining the transient response, you can determine important characteristics of the RLC circuit, such as its damping factor and natural frequency. These characteristics can provide important information about the circuit's stability and performance.