The drawing shows four situations in which a positively char…
The drawing shows four situations in which a positively charged particle is moving with a velocity v→{“version”:”1.1″,”math”:”v→”} through a magnetic field B→{“version”:”1.1″,”math”:”B→”}. In each case, the magnetic field is directed out of the page toward you, and the velocity is directed to the right. In only one of these drawings is the magnetic force F→{“version”:”1.1″,”math”:”F→”} physically reasonable. Which drawing is it?