Question

1.   An LC circuit with L = 0.003 H and C = 0.001 F has a maximum charge on the capacitor at time t = 0 on a timer. What time is measured to have the voltage across the capacitor completely reverse for the first time?   a). 8.2 ms b). 2.7 ms c). 10.8 ms d). 5.4 ms

2. A uniform 2T B-field points along a line 30° from the x axis. A loop of wire, with area of 3.0 m2, is positioned so that the plane of the loop is in the y-z plane. What is the magnetic flux through that area? a). 7.1 Tm2 b). 6.0 Tm2 c). 5.2 Tm2. d). 3.9 Tm2

3. A square loop constructed from conducting wire is at rest on the plane of a desk. A uniform but decreasing B-field is pointed into the desk. The induced current in the square loop is best described with which of the following? a). Counterclockwise, when viewed from above b) Clockwise when viewed from above. c) It doesn't exist. d). The current is inconsistent regarding direction

Answer 1