If an electron enters a magnetic field with its velocity pointing in the same direction as the magnetic field, then

If a beta particle enters in magnetic and electric field with its velocity pointing in the same direction as electric and magnetic field then :

An electron enters in an electric field with its velocity in the direction of the electric lines of force. Then

An electron enters an electric field with its velocity in the direction of the electric lines of force. Then

An electron (charge q coulomb) enters a magnetic field of H "weber"//m^(2) with a velocity of vm//s in the same direction as that of the field the force on the electron is

A uniform magnetic field and a uniform electric field are produced, pointing in the same direction. An electron is projected with its velocity pointed in the same direction. What will be the effect on electron?

A proton enters a magnetic field vecB with velocity vecV in a direction opposite to vecB .The net magnetic force is—