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) Express the magnitude of the force between the wires per unit length, f, in terms of I1, I2, and d.  B)  Calculate the numerical value of f in N/m.  C)  Is the force repulsive or attractive?  D)  Express the minimal work per unit length needed to separate the two wires from d to 2d.  E) Calculate the numerical value of w in J/m

) Express the magnitude of the force between the wires per unit length, f, in terms of I1, I2, and d.  B)  Calculate the numerical value of f in N/m.  C)  Is the force repulsive or attractive?  D)  Express the minimal work per unit length needed to separate the two wires from d to 2d.  E) Calculate the numerical value of w in J/m

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Zero to 1: Two very long, parallel wires are separated by d = 0.015 m. The first wire carries a current of I1 = 0.35 A. The second wire carries a current of I2 = 0.45 A.

  1. A) Express the magnitude of the force between the wires per unit length, f, in terms of I1, I2, and d. 
  2. B)  Calculate the numerical value of f in N/m. 
  3. C)  Is the force repulsive or attractive? 
  4. D)  Express the minimal work per unit length needed to separate the two wires from d to 2d. 
  5. E) Calculate the numerical value of w in J/m. 
d
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