Question 22 Not yet answered Marked out of 1.00 A 15 cm metal rod, with a mass of 50 g, lies perpendicular to an external magnetic field of 0.50 T. The current necessary to counteract the gravitational force on the rod IS: O a. 6.5 A O b. 65 A O c. 0.65 A O d. 0.065 A Question 23 Not yet answered Marked out of 1.00O d. 0.065 A Question 23 Not yet answered Marked out of 1.00 The diagram that best illustrates the magnetic field near a wire that carries an electron current into the plane of the paper is: a. b. O C. O O Question 24 Not yet answered Marked out of 1.00Not yet answered Marked out of 100 An electron is injected between two oppositely charged parallel plates connected to a DC voltage supply. The distance between the plates is 6.50 mm and the electron, initially at rest, accelerates towards the positive plate gaining 8.25 x 10- 18 J of kinetic energy. Based on the above information, the strength of the electric field between the plates is: O a. 335 V/m O b. 7.93 x 103 V/m O c. 7.93 x 106 V/m O d. 0.335 V/m Previous page Finish attempt