Capacitors VERY QUICK EASY QUESTION! PLEASE HELP!

  • #1
physicsbhelp
298
0
[SOLVED] Capacitors VERY QUICK EASY QUESTION! PLEASE HELP!

Homework Statement



A parallel-plate capacitor has circular plates of 8.80 cm radius and 1.50 mm separation.
(a) Calculate the capacitance.
 
Last edited:

Answers and Replies

  • #2
physicsbhelp
298
0
THE answer has to be in pF for part a)
 
  • #3
Snazzy
468
0
I don't know what R is, and I don't know what L is. I can assume that A is the area, but the equation your teacher gave you makes no sense to me, as the equation for a parallel plate capacitor is:

[tex]C=\frac{k\epsilon _0A}{d}[/tex]

For air or free space, k is about 1.

There's also another equation:

[tex]C=\frac{Q}{V}[/tex]
 
  • #4
Snazzy
468
0
Distance of separation.
Area.
Capacitance
Voltage
[tex]\epsilon_0=8.85\times10^-12 \frac{C^2}{Nm^2}[/tex]
Q = charge
 
  • #5
physicsbhelp
298
0
1808
 
Last edited:
  • #6
Snazzy
468
0
I can't say if the answer is right or wrong without you showing any work.
 
  • #7
Snazzy
468
0
Looks right.
 

Suggested for: Capacitors VERY QUICK EASY QUESTION! PLEASE HELP!

Replies
16
Views
543
Replies
25
Views
437
  • Last Post
Replies
6
Views
483
Replies
4
Views
168
Replies
2
Views
323
Replies
10
Views
683
Replies
10
Views
313
Replies
5
Views
576
Replies
7
Views
800
  • Last Post
Replies
6
Views
286
Top