The Wein bridge circuit shown in the figure below can be used as a frequency measuring device, provided

A. $$\frac{{{R_2}}}{{{R_4}}} = 2$$
B. $$\frac{{{R_4}}}{{{R_2}}} = 2$$
C. $$\frac{{{R_2}}}{{{R_4}}} = 4$$
D. $$\frac{{{R_2}}}{{{R_4}}} = 3$$
Answer: Option A

Join The Discussion