Question!
- Suppose the capacitor shown here is charged to Q and then the battery disconnected.
- Now suppose I pull the plates further apart so that the final separation is d1.
- How do the quantities Q, W, C, V, E change?
How much do these quantities change?.. exercise for student!!
http://wug.physics.uiuc.edu/courses/phys112/fall97/acts/lect08/act08a/sld001.htm
remains the same.. no way for charge to leave.
increases.. add energy to system by separating
decreases.. since energy , but Q remains same
increases.. since C ¯, but Q remains same
remains the same.. depends only on charge density