Question

Analyze and answer the following questions:

1- The magnetic force on a charged particle is perpendicular to the speed ?⃗ it moves with, so it is said that, in this case, the magnetic force does no work over the charged particle. Explain this statement.

2- Does a magnetic force acting on the moving part of a circuit do work? Justify your statement with an example and the respective equations

3- Build an example, with feasible data, of the magnetic force between two conductors that carry an electric current I. Analyze the two cases of currents in the same direction and opposite direction. Explain whether the movement of conductors can be detected at naked eye. Hint: Compare the force obtained with the gravitational force on a object of mass m.

4- A magnetic dipole representing a small magnet is in a non-uniform magnetic field ?⃗⃗ = (??² + ???) î + ??ĵ. If the magnetic dipole moment is ?⃗⃗⃗ = ?i, calculate the magnetic force of the field on the dipole based on the equation of energy and based on the equation of force. Compare the results.

5- Explain why in a semicircular loop, placed in a plane parallel to an uniform magnetic field, the force on the curved part is independent of the geometry of the wire bend. On what would you base your argument?

6- Explain the interaction of attraction and repulsion between two magnets from the energetic point of view.

Answer 1