A proton enter a magnetic field 1.25 T with a velocity `1.5 xx 10^(7) m/s with 30^(o)` angle with the field. Find the force on the proton?

A proton enters perpendicular to a magnetic field of 2.5 T with a velocity 1.5 xx 10^(7) ms^(-1) . Find the force on the proton?

A charged particle is moving in a magnetic field of 10^(-2) T with a velocity of 10^(7) ms^(-1) in a circular path of radius 0.6cm. Find the specific charge of the particle.

An electron moving with a velocity of 4.5 xx 10^(7)m/s enters a magnetic field of 2.5 T at an angle of 30^(o) calculate the force on the electron.

Two protons are entering perpendicular to a uniform magnetic field with velocities in the ratio 1:2. What is the ratio of the radius of the circular path they describe in the magnetic field?

A dipole consisting of an electron and a proton separated by a distance 4xx10^(-10)m is situated in an electric field of intensity 3xx10^5NC^(-1) at an angle of 30^@ with the field. Calculate the dipole moment and torque acting on it.

An electron is moving northward with a velocity 8.5 xx 10^(6) ms^(-1) in a magnetic field 2T, directed downward. Calculate the instantaneous force on the electron.

An electron with energy 1 keV is entering a uni form magnetic field of 0.04T at an angle 60 with the field. Predict the path of the electron and find the characteristics of the path.