Direction of Force (Motor Effect)

  • Thread starter Thread starter n0iz
  • Start date Start date
  • Tags Tags
    Direction Force
Click For Summary
SUMMARY

The discussion focuses on determining the direction of force acting on a current-carrying wire within a magnetic field using Fleming's Left Hand Rule. The user successfully identifies the force direction for the first scenario as "out" by aligning their fingers according to the rule. However, they express confusion regarding the current's direction in the second scenario, which appears to flow diagonally down and to the right. This indicates a need for clarity on applying the rule in different orientations of current flow.

PREREQUISITES
  • Understanding of Fleming's Left Hand Rule
  • Basic knowledge of magnetic fields and forces
  • Familiarity with current-carrying conductors
  • Ability to interpret vector directions in physics
NEXT STEPS
  • Study the application of Fleming's Left Hand Rule in various scenarios
  • Learn about the Lorentz force law and its implications
  • Explore the effects of magnetic field strength on force direction
  • Investigate the relationship between current direction and magnetic field orientation
USEFUL FOR

Physics students, educators, and anyone studying electromagnetism or the principles of motor effects in electrical engineering.

n0iz
Messages
1
Reaction score
0

Homework Statement



[PLAIN]http://img695.imageshack.us/img695/5023/directionofforce.jpg
Basically I have to work out the force acting on a current-carrying wire in a magnetic field.

Homework Equations


Fleming's Left Hand Rule
(http://en.wikipedia.org/wiki/Fleming's_left_hand_rule_for_motors)

The Attempt at a Solution


Ok so for the first question (the one on the left)
index finger - pointing up
middle finger - pointing right

my thumb was pointing "out"
so the direction of the force acting on the wire was just "out"

For the second question
index finger - up
middle finger - ?

I'm totally stumped on what direction the current is flowing in :(
 
Last edited by a moderator:
Physics news on Phys.org
The current in the second picture appears to be flowing diagonally down and to the right.
 

Similar threads

Fleming's left and right hand rule - how do they work?
  • · Replies 8 ·
Replies
8
Views
4K
Determining the direction of magnetic force
  • · Replies 1 ·
Replies
1
Views
1K
Which Rule is Correct for Determining the Direction of Lorentz Force?
  • · Replies 5 ·
Replies
5
Views
3K
Deduction about Magnetic Poles surrounding a Conductor
  • · Replies 40 ·
2
Replies
40
Views
3K
Is this the default set up of a DC motor?
  • · Replies 3 ·
Replies
3
Views
1K
Right-Hand Rule: Finding Induced Direction in a One Loop Wire on the Page
  • · Replies 5 ·
Replies
5
Views
2K
Why Does Fleming's Right Hand Rule Give an Upward Force on the Wire?
  • · Replies 4 ·
Replies
4
Views
3K
Determining the direction of an induced current
  • · Replies 10 ·
Replies
10
Views
2K
What is the direction of the resulting force on this current
  • · Replies 1 ·
Replies
1
Views
2K
Direction of Magnetic Field with Current and Motion in Same Direction?
  • · Replies 10 ·
Replies
10
Views
2K