A proton of charge `e` and mass `m` enters a uniform magnetic field `B = Bi` with an initial velocity `v=v_xhati+v_yhatj`. Find an expression in unit vector notation for its velocity at time `t`.

A proton of charge +e and mass m enters a uniform magnetic Field vecB=hatB with an intial velocity vecv=v_(0x)hati+v_(0y)hatj . Find an expression in unit-vector notation for its velocity at any later time t.

An electron of charge -e , mass m, enters a uniform magnetic field vec(B)= B hat(i) with an initial velocity vec(v) = v_(x) hat(i) + v_(y) hat(j) . What is the velocity of the electron after a time interval of t seconds?

A particle of charge -q and mass m enters a uniform magnetic field vecB (perpendicular to paper inward) at P with a velocity v_0 at an angle alpha and leaves the field at Q with velocity v at angle beta as shown in fig.

A particle of charge -q and mass m enters a uniform magnetic field vecB (perpendicular to paper inward) at P with a velocity v_0 at an angle alpha and leaves the field at Q with velocity v at angle beta as shown in fig.

A particle of specific charge alpha enters a uniform magnetic field B=-B_0hatk with velocity v=v_0hati from the origin. Find the time dependence of velocity and position of the particle.

A particle of specific charge alpha enters a uniform magnetic field B=-B_0hatk with velocity v=v_0hati from the origin. Find the time dependence of velocity and position of the particle.

A particle of spectfic charge alpha enters a uniform magnetic field B=-B_(0)hatk with velocity V=v_(0)hati from the origin Find the time dependence of velocity and position of the particle

A particle of charge q is moving through a uniform magnetic field of intensity B with a velocity v. Write an expression for the force acting on the particle in a vector form.