contestada

Two insulated current-carrying straight wires of equal length are arranged in the lab so that Wire A carries a current northward and Wire B carries a current eastward, the wires crossing at their midpoints separated only by their insulation. Which of the statements below is true?

a. There are no forces in this situation.
b. The net force on Wire B is southward.
c. There are forces, but the net force on each wire is zero.
d. The net force on Wire A is westward.

Respuesta :

cjmejiab

Since there is a meeting of the cables at their midpoints, it is therefore understood that the force on them is the same but in the opposite direction, this to maintain the static balance between the two.

This can also be corroborated by applying the right hand rule for the force, at which depends of the magnetic field. The net force is zero because the cable segment to the left of the vertical cable feels an opposite force in the direction of the cable segment to the right.

Then the forces cancel.

Therefore the correct answer is C. Therefore the net force on each wire is zero

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