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Magnetic Fields and Current Loops

  • Thread starter Brit412
  • Start date
24
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1. Homework Statement
A long, straight wire carries a current of 14 A. Next to the wire is a square loop with sides 1.0m in length. The loop carries a current of 2.5A in the same direction as the wire. Calculate the net force acting on the wire.


2. Homework Equations

Walker.22.60.jpg

Magnetic Field for long, straight wire: permeability of free space*I/ 2pi*radius


3. The Attempt at a Solution
I know that the net force is the two forces from the wire and the loop, but I don't understand how to calculate the 2 different magnetic fields.
 

rl.bhat

Homework Helper
4,433
5
Find the magnetic field due to long , straight at a distance 0.2 m and 1.2 m.
In square loop, upper conductor carries a current parallel to the long wire. So the attract each other. Current in lower limb in anti parallel. So it will experience a repulsive force.
Find out the formula for the force on a current carrying conductor in a magnetic field.
 

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