(b) What will be the total tension in the wires if the direction of current is reversed keeping the magnetic field same as before?(Ignore the mass of the wires.) g=9.8ms−2.
(b)
If the direction of the current is reversed, then the force due to magnetic field and the weight of the wire acts in a vertically downward direction.
Total tension in the wire = BIl+mg=1.176 N