State which type or types of field may produce a force on an uncharged particle that is moving.
State which type or types of field may produce a force on a charged particle that is stationary.
State which type or types of field may produce a force on a charged particle that is moving at right-angles to the field.
Particle X has mass $3.32 \times 10^{-26}\,\text{kg}$ and charge $+1.60 \times 10^{-19}\,\text{C}$. It moves through a vacuum at speed $7.60 \times 10^{4}\,\text{m s}^{-1}$. It enters a region containing a uniform magnetic field that is perpendicular to its direction of travel. The particle follows a semicircle of diameter $12.2\,\text{cm}$, as shown in Fig. 6.1.
State the direction of the uniform magnetic field.
Calculate the magnetic flux density.
A second particle Y has a mass smaller than that of particle X in (b) and the same charge. It enters the uniform magnetic field in (b) with the same speed and along the same initial path as particle X. On Fig. 6.1, draw the route of particle Y in the magnetic field region.