8. Why is the direction of the induced current in secondary coil opposite to the direction of the current in primary coil? 9. Why is the light bulb blinking instead of staying lit? What could you do to have an AC current but keep the light practically continuously on? (Hint: Your household light bulb does not seem to flicker even though your house is actually powered by an AC signal.) Part III: Induction of current in the loop with generator 10. How does the induced current in the secondary coil in this case compare with the AC current source you did in part 2? How does the induced magnetic field lines through the secondary coil change as the magnetic bar rotates? 11. Compare the maximum reading in the voltmeter for each rpm settings. In which case is the maximum induced voltage highest? Table 2. Dependence of emf on rmp (revolutions per minute)