The input voltage, Vi=5+2sin(ωt) is applied to a circuit as shown in the figure below. Assuming all the elements of the circut are ideal, then the minimum value of V0 at steady state would be equal to
A
-3 V
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B
-5 V
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C
-6 V
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D
-4 V
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Solution
The correct option is D -4 V For the positive half cycle, the capacitor will charge with a voltage of 5+2=7V.
The minimum value of the sine function that could achieve is -2 V, thus the minimum output voltage would be equal to V0=5−2−7=−4V