College Physics ›› 2017, Vol. 36 ›› Issue (5): 11-18.doi: 10.16854/j.cnki.1000-0712.2017.05.004
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LI Xiang
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Abstract: Multiple connotations of the quality factor Q associated with frequency characteristic,energy conversion,and various physical variables are analyzed. The analysis is based on the differential equation of second-order system with sinusoidal excitation,as well as the physical contexts of forced damping vibration and RLC serial /parallel resonant circuits. Then it is also discussed that how to teach the concept of quality factor Q better for engineering students.
Key words: quality factor, damping vibration, resonant circuit
LI Xiang. Discussions on multiple connotations of quality factor and its teaching[J].College Physics, 2017, 36(5): 11-18.
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URL: https://dxwl.bnu.edu.cn/EN/10.16854/j.cnki.1000-0712.2017.05.004
https://dxwl.bnu.edu.cn/EN/Y2017/V36/I5/11
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