How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?

State the unit of magnetic field in terms of the force experienced by a current carrying conductor placed in a magnetic field.

Name three factors on which the magnitude of force on a current carrying conductor placed in a magnetic field depends and state how does the force depend on the factors stated by you.

State condition in each case for the magnitude of force on a current carrying conductor placed in a magnetic field to be (a) zero, (b) maximum