OK. So clearly there is a relationship between the current phase and resonance.fereshteh said:At the resonance frequency it is 180 degrees.
me said:To understand what the phase has to do with it, consider how the wave you are using interacts with the PEC: why would you expect resonance of any kind at all anyway?
Resonant frequency is the frequency at which an object, system, or medium naturally vibrates or oscillates with the greatest amplitude when excited by an external force.
Resonant frequency is determined by the physical properties of an object or system, such as its mass, stiffness, and damping coefficient. It can also be calculated using the formula f0 = 1/2π√(k/m), where f0 is the resonant frequency, k is the spring constant, and m is the mass.
Resonant frequency can be affected by factors such as changes in the mass, stiffness, or damping of an object or system. Other external factors like temperature, pressure, and applied forces can also impact resonant frequency.
Resonant frequency is important because it can help engineers and scientists understand the natural behavior of objects and systems. It is also used in various applications, such as tuning musical instruments, designing structures to withstand vibrations, and detecting flaws in materials through resonance testing.
Resonant frequency can be demonstrated or shown in various ways, such as using a tuning fork or a pendulum to observe oscillations at different frequencies. It can also be shown using instruments like an oscilloscope or a frequency analyzer to measure the amplitude and frequency of vibrations in a system.