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how do I calculate I(t) for capacitor when R3 is also present

joeyd999

joeyd999

Joined Jun 6, 2011
4,711
PG1995 said:
Hi

Please have a look on the attachment, you can find my question there with other details. Thanks a lot.

Regards
PG
Click to expand...
R1 & R3 form a voltage divider, giving you a new Vth & Rth (the thevinin equivalent of R1, R3 and your 2.0V Vin.

Redraw your circuit using the thevinen equivalents and your solution will be obvious.

Do the same for your switch 2 position to discover the discharge timing.
 
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