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Direction of Force (Motor Effect)

  • Thread starter n0iz
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  • #1
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Homework Statement



[PLAIN]http://img695.imageshack.us/img695/5023/directionofforce.jpg [Broken]
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 :(
 
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Answers and Replies

  • #2
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The current in the second picture appears to be flowing diagonally down and to the right.
 

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