Question

Consider the path of the proton (q = 1.602 × 10−19 C, m = 1.673 × 10−27 kg) in a uniform electric and magnetic field. Both fields are in the z direction, B⃗ = B0k? and E⃗ = E0k?, where B0 = 55 mT and E0 = 180 V / m. At time t = 0, the proton moves at v⃗ = v0?ı, v0 = 150 km / s. Based on this information, what kind of orbit does the proton have?
(a) Calculate the radius of the thread and the pitch of the thread in the first and second turns. (b) Draw the proton path.

Answer 1