Give expression for the force of a current carrying conductor in a magnetic field.

When is the force experienced by a current - carrying conductor placed in a magnetic field largest ?

What are the factors on which the force acting on a give current - carrying conductor placed in a magnetic field depend ? State when is the magnitude of force highest .

Name the devices which a current carrying conductor and magnetic field are used .

State the rule to determine the direction of a (i) magnetic field produced around a straight cocnductor - carrying current, (ii) force experienced by a current - carrying straight conductor placed in a magnetic field which is perpendicular to it , and (iii) current induced in a coil due to its rotation in a magnetic field .

Write formula for current carrying wire placed in uniform magnetic field.

Mention the angle between a current - carrying straight conductor and magnetic field for which the force experienced by the conductor placed in a magnetic field is maximum .

Write a short note on the force acting on a current - carrying conductor placed in a external magnetic field .

Derive an expression for the torque acting or a current carrying loop which subtends angle with uniform magnetic field.

Derive an expression for the torque acting on a current carrying loop suspended in a uniform magnetic field.

What is the direction of the magnetic force acting on a current - carrying wire placed in a magnetic field ?