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    				| 1. | 
                                    RC Phase shift oscillator uses three identical RC sections in the feedback network. The values of the components are R = 680Ω and C = 220 nF. Determine the frequency of oscillation. | 
                            
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Answer»  f = \(\frac{0.065}{RC}\) = \(\frac{0.065}{980\times 220\times 10^{-9}}\) = \(\frac{0.065}{680\times 220}\times 10^9\) = 434.4 Hz  | 
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