# Capacitance help

Announcements
#1
its question 2ci on this
https://pmt.physicsandmathstutor.com...Capacitors.pdf

https://pmt.physicsandmathstutor.com...itors%20MS.pdf

I dont understand the ratio part in the answers like why is the charge divided by 1000?
0
3 years ago
#2
(Original post by ella sian)
its question 2ci on this
https://pmt.physicsandmathstutor.com...Capacitors.pdf

https://pmt.physicsandmathstutor.com...itors%20MS.pdf

I dont understand the ratio part in the answers like why is the charge divided by 1000?
Capacitance of ball is 1.2x10-11 - you're given this in question 2a

Capacitance of the parallel capacitor in 2c is 1.2x10-8

The capacitance of the ball is 1/1000 th (or 1x10-3) of the capacitance of the capacitor
which is the same thing as saying the capacitor has a capacitance 1000 times (or 1.0x103) higher than the capacitance of ball
0
X

new posts
Back
to top
Latest

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### Poll

Join the discussion

Talking to current university students (18)
19.15%
Talking to peers going through the same thing (32)
34.04%
Speaking to student ambassadors from the universities (5)
5.32%
Speaking to staff members from universities (2)
2.13%
Using the personal statement builder, library or helper service (9)
9.57%
19.15%
Learning about/speaking to Student Finance England (4)
4.26%
Something else (tell us in the thread) (6)
6.38%