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

Electric field of a wire

  • Thread starter maccha
  • Start date
53
0
So I'm learning about how applied electric field causes current in a wire.. I'm confused about one thing. If you have a wire connected to a battery.. and let's say for the first "half" of the circuit the wire is made of copper and the second half is the wire is made of gold... will the electric field be different in these two materials even if they have the same dimensions? Because that's the only way I can see the current staying the same.
 

ehild

Homework Helper
15,360
1,766
Yes. The current is the same, the resistance of the two pieces of wire are different, so both the voltage across them and the electric field inside them are different.

ehild
 

Related Threads for: Electric field of a wire

  • Posted
Replies
6
Views
17K
  • Posted
Replies
3
Views
1K
  • Posted
Replies
15
Views
16K
Replies
1
Views
6K
  • Posted
Replies
1
Views
4K
Replies
2
Views
1K
Replies
12
Views
17K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top