What is the equation of cut off frequency fc of the horn type loud spe – McqOptions

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1.	What is the equation of cut off frequency fc of the horn type loud speaker?
A.	f<sub>c</sub> = CA / 2 V
B.	f<sub>c</sub> = DA / 2 V
C.	f<sub>c</sub> = CA / 5 V
D.	f<sub>c</sub> = CA / 3 D
Answer» B. f<sub>c</sub> = DA / 2 V

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