Answer:
Explanation:
Given:
mass of the wire,
length of the wire,
current in the wire,
Now form the Lorentz force we know that every current carrying wire experiences a magnetic force on it due to the magnetic field components perpendicular to it.
Mathematically given as:
here: we nee to balance the gravitational force on the mass.
magnetic field
This magnetic field must be perpendicular to the direction of current in the wire and the these two directional quantities must lie in a plane normal to the direction of gravity according to the Fleming's left hand rule.