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Question
An RC circuit as shown in the figure is driven by an AC source generating a square wave. The output wave pattern monitored by a CRO would look close to:
An RC circuit as shown in the figure is driven by an AC source generating a square wave. The output wave pattern monitored by a CRO would look close to:
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Solution
The correct option is B
Assuming AC starts with positive voltage. When there is a +ve voltage across input, then the capacitor starts charging, trying to reach saturation value. When -ve voltage of AC appears across input, the capacitor starts discharging. This process of charging and discharging keeps happening alternatively.
Hence, option (b) is correct.
Assuming AC starts with positive voltage. When there is a +ve voltage across input, then the capacitor starts charging, trying to reach saturation value. When -ve voltage of AC appears across input, the capacitor starts discharging. This process of charging and discharging keeps happening alternatively.
Hence, option (b) is correct.
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