Q3 a) A particle with mass m and charge q, moving with a velocity v enters a region of uniform magnetic field B, as shown in FIGURE. The particle strikes the wall at a distance d from the entrance slit. If the particle's velocity stays the same but its charge to mass ratio is doubled, at what distance from the entrance slit will the particle strike the wall? x x x x x x B x x x Q3b) A long line of charge with linear charge density 2. is surrounded by a cylindrical shell of radius R and carries acharge density o. Find the electric field inside and outside the sell ?

Q3 a) A particle with mass m and charge q, moving with a velocity v enters a region of uniform magnetic field B, as shown in FIGURE. The particle strikes the wall at a distance d from the entrance slit. If the particle's velocity stays the same but its charge to mass ratio is doubled, at what distance from the entrance slit will the particle strike the wall? x x x x x x B x x x Q3b) A long line of charge with linear charge density 2. is surrounded by a cylindrical shell of radius R and carries acharge density o. Find the electric field inside and outside the sell ?