When we force an object to vibrate at its natural frequency, we call this resonance.
The resonance frequency can be obtained by the inductive reactance or by capacitive reactance :,where is the inductive reactance, is the resonant frequency, is the inductance.
By using capacitive reactance: , where is the capacitance, is the resonant frequency, is the capacitive reactance,
Even if the system's present speed is close to normal, even when the input force is quite little, this creates severe vibrations. When the device is moved in the appropriate direction, its amplitude increases, causing resonance.
Each object has its own resonance frequency.
The word "resonance" refers to the amplitude of a vibration growing as a result of a periodically applied force with a frequency equal to or near the natural frequency of the dynamic system.
The term resonance comes from the Latin word "resonantia," which is connected to the English word "resound."
A scenario in which a number of systems have a natural tendency to oscillate with a higher amplitude at a given frequency is referred to as resonance.