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

Electron charge

  • Thread starter mp252
  • Start date
  • #1
9
0
i was stuck on this equation if a current of 2 A flows through a lamp when it is connected by copper wire of cross-sectional area 1 mm2 to the terminals of a battery. how many electrons will leave the negative terminal of the battery in 3 seconds? (obiviously the charge of electrons is e=1.602*10–19 C.
 

Answers and Replies

  • #2
Vanadium 50
Staff Emeritus
Science Advisor
Education Advisor
2019 Award
24,330
7,176
What is the definition of an ampere in terms of coulombs and seconds?
 
  • #3
9
0
1a=1c/1s
 
  • #4
Doc Al
Mentor
44,912
1,170
1a=1c/1s
Right. An Ampere is one Coulomb of charge per second. How many electrons make up one Coulomb?
 

Related Threads on Electron charge

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
3
Views
4K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
5
Views
6K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
5
Views
8K
Top