A pulse must be defined for Voltage, Current, Rise time , duty cycle.,
Other variables can be Power, bandwidth, energy, magnetic force, saturation level, leakage & Remanence.
The source, conductors and load must be defined in terms of impedance over frequency.
Otherwise it is undefined.
The simplest example I know is found in Espresso Coffee water pumps which operate at line frequency using a diode to half wave rectify and create a half sine pulse to the solenoid, which has internal spring mounted rod to resonate at line frequency and the rod extended to a diaphragm pump for low flow but high pressure and a fair amount of noise.