16. A 1.5 microfarad capacitor is charged to 60 V. The charging battery is then disconnected and a 12 millihenry coil is connected in series with the capacitor so the LC oscillations occur. What is the maximum current in the coil? 17. Current-Carrying Wires (a) What is the magnetic force, F, on the bottom wire due to the other two wires? 3i of 3 -._ a 3i (b) Find the magnetic force on wire in the center of the square. 3i .o 18. Electrons are moving counterclockwise as shown in the diagram. Find the magnetic field at the center of the circle. electron 19. Position P is in a uniform electric field. Which of the following statements is true? The potential increases to the right The force on an electron at P would he to the left The electric field between the lines is zero The electric field magnitude increases to the right 20. Along straight wire is next to a conducting loop. The current is increasing in the wire in the direction shown. Find the direction of the current in the rectangle