RC Circuits (1 Viewer)

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

I've been set the following assignment on RC circuits that I thought I understood. Turns out I don't:


I understand what is happening in the circuit and what it is asking me to do but I don't really know how to go about it.

When i transposed the charging formula i got:

When i transposed the discharging formula i got:

Not really sure if these are correct but if they are, how do I go about calculating the theoretical charge and discharge times when I don't know Vc

I might just be being stupid but Maths and Physics were never my strong points so any help would be much appreciated (or if you wanna do the assignment I wouldnt mind ;P)

Thanks for you time and help,
Dan - Edinburgh, Scotland


Just like to say thanks for the 'overwhelming' response from you all.!

Thanks a bunch!
well, i'm not sure about everyone else, but the document in your first link is unreadable on my computer.

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving