Asking about direction of magnetic force

  • Thread starter phyphysics
  • Start date
  • #1
25
0
I have a problem with a question that asked me to give the direction of magnetic force of a long wire with a current flowing from west to east horizontally with a magneitc field pointing into the page. What is the direction of the force and the motion afterwards?
 

Answers and Replies

  • #2
quasar987
Science Advisor
Homework Helper
Gold Member
4,780
12
The wire is made out of electrons flowing in the direction opposite of that of the current. What is the formula for the magnetic force on an moving charge?
 
  • #3
mukundpa
Homework Helper
524
3
Use Fleming's left hand rule.
 
  • #4
25
0
But after opplying the rule, my thumb point in a direction that's away from me. But the suggested answer that the force is pointing upwards. How come?
 
  • #5
mukundpa
Homework Helper
524
3
Follow the direction as on a map.

current is west to east means from left to right(middle finger)
magnetic field is into the paper (index finger)
where the thumb points? Is it upward

Dont confused with hand. Left hand.
 

Related Threads on Asking about direction of magnetic force

Replies
4
Views
2K
Replies
1
Views
313
Replies
1
Views
10K
  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
1
Views
654
  • Last Post
Replies
3
Views
809
Replies
7
Views
552
Top