44. (II) Two long straight parallel wires are 15 cm apart.

Chapter 20, Problem 44

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44. (II) Two long straight parallel wires are 15 cm apart. Wire A carries 2.0 A current. Wire B's current is 4.0 A in the same direction, (a) Determine the magnetic field magnitude due to wire A at the position of wire B. (b) Determine the magnetic field due to wire B at the position of wire A. (c) Arc these two magnetic fields equal and opposite? Why or why not? (d) Determine the force on wire A due to w'ire B. and the force on w'ire B due to wrire A. Are these two forces equal and opposite? Why or why not?

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