10:41 Search Page 2 v Done 30 70 6 Which of these resistors, if any, are in series? 7 Which of these resistors, if any, are in parallel? 20 D 8 The circles A, B,C, & D represent identical light bulbs. Which bulb, if any, is brighter than all the others? 9 The filament in bulb A breaks & so A goes out. What happens to each of the other bulbs? Indicate whether it goes out, gets brighter or dimmer, or stays the same. B: C: D: 10 A circular loop of wire is at rest in the x-y plane. Parallel to this loop and directly beneath it is a second circular loop of the same size, also initially at rest, but the second loop is connected to a Positive z axis is battery that produces a positive clockwise current through it. This the first loop, the field D is In me negative z direction (into the pages. ( out of the page. second loop's current produces a magnetic field B. At the center of a) A positive charge at the origin is moving in the negative y direction. The magnetic force on this charge is in the: i) + x direction; ii) - x direction; iii) + y direction; iv) - y direction; v) + z direction; vi) - z direction. b) If both loops remain at rest, the current in the top loop: i) is zero; ii) is positive in the counterclockwise direction; iii) is positive in the clockwise direction. Explain. A