- #1

wirefree

- 105

- 21

Thread moved from the technical forums, so no Template is shown

**Summary:**Seek help with the working of a Capacitor in the presence of a DC & AC voltage source.

I greatly appreciate this opportunity to submit a question. It's a homework problem and I only seek to clear my concepts.

**Problem:**Find amplitude of the ripple voltage across the resistor.

**Concepts:**Concepts that I am familiar with are related to the diode. The diode circuit I worked on successfully included just a resistor, and so the ripple voltage was found by determining diode current for the DC source and subtracting from it the diode current for the AC source; the result multipled with R gave me the incremental voltage.

I am unable to proceed with the capacitor in place.

Qualitatively, how does the capacitor behave?

I understand it charges to maximum voltage, which would be the voltage across the resistor. After that, how is its behavior related to alternating voltage?

I'd be grateful for any helpful advise.

Best Regards,

wirefree