14) A straight long wire carries an electric current to the top of the page. The current is placed in a uniform magnetic field directed out the page. What is the direction of the magnetic force on the current? A. Left. B. Right. C. To the bottom of the page. D. To the top of the page. E. Out of the page
15) A negative charge moving with a constant velocity v enters a region of a uniform magnetic field pointing into the page. What is the direction of the magnetic force on the charge? A. Left. B. Right. C. To the bottom of the page. D. To the top of the page. E. There is no magnetic force on the current.