• Support PF! Buy your school textbooks, materials and every day products Here!

Charge that a battery transfers between two plates

  • Thread starter jjcm
  • Start date
  • #1
1
0

Homework Statement


An AA battery (1.5 V potential) is connected to a parallel-plate capacitor having 6.00cm-diameter plates spaced 4mm apart. How much charge does the battery move from one plate to the other?

Homework Equations


V=Q/C
C=A[tex]\kappa[/tex][tex]\epsilon[/tex]/d


The Attempt at a Solution


Plugged in values:
C = (.03)2*(8.85*10-12)/.004 = 1.99*10-12
Q = 1.5V * 1.99*10-12f

Getting an incorrect answer for Q. Thoughts?
 

Answers and Replies

  • #2
1,953
248
You forgot a factor of [itex] \pi [/itex] in the formula for area.
 

Related Threads on Charge that a battery transfers between two plates

Replies
10
Views
1K
  • Last Post
Replies
2
Views
508
  • Last Post
Replies
0
Views
2K
Replies
2
Views
1K
Replies
1
Views
4K
Replies
4
Views
1K
Replies
22
Views
14K
Replies
8
Views
11K
Replies
2
Views
1K
Top