Force on a Current-Carrying Conductor in a Magnetic Field

Describe the condition under which a charged particle in a magnetic field follow straight line path.

Magnetic force never change the speed of a charged particle.

Define the term Lorentz force.

The value of force on a current carrying wire of a uniform magnetic field is zero.

What will be the value of force on a current carrying wire of a uniform magnetic field?

The force on a wire is $20 \mathrm{N}$, if the magnetic field is $4.50 \mathrm{T}$, length is $20.00 \mathrm{cm}$, and current is $30 \mathrm{A}.$

Calculate the force on a wire, given magnetic field is $2.50 \mathrm{T}$, length is $5.00 \mathrm{cm}$, and current is $30 \mathrm{A}.$

The radius of the object in the circular path in a magnetic field is directly proportional to the strength of the magnetic field.

What are the factors on which the radius of the object in the circular path in a magnetic field depends upon?

The time period of a charged particle undergoing a circular motion in a uniform magnetic field does not depend upon the charge of the material and magnetic field.

What are the factors that the time period of a charged particle undergoing a circular motion in a uniform magnetic field depends upon?

A charged particle travelling through a magnetic field can never travel in a circular path.

Under what conditions will a charged particle travelling through a magnetic field follows a circular path?

The kinetic energy of the particle changes when it is inside a magnetic field.

Does the presence of magnetic field affect the kinetic energy of the particle?

The right-hand thumb rule is used to find the direction of magnetic field around a current carrying a straight conductor.

Explain right-hand thumb rule.

Electrical motors use Fleming's left-hand rule to find direction of magnetic forces.

Explain Fleming's left-hand rule. 

Magnetic force depends on charge of particle, velocity and the magnetic field.