RC Circuits - UIUC
swihi Sihi h l ditch is open. Switch is then closed. C • What is current I 0 in circuit immediately R thereafter? S – Capacitor initially uncharged ε – Therefore V C =0 (since V=Q/C) – Therefore C behaves as a wire (short R circuit) – Ohm’s law! ε Physics 102: Lecture 7, Slide 5 I 0 = ε/R
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