Answer Happy

1. Choose the Changing Magnetic Field Animation and watch as the field changes over time. You can also see graphs of flux and emf as they change over time. 2. How does this animation depict B fields going in different directions? 3. The B field begins by changing sinusoidally and then holds steady for a brief time before returning to sinusoidal change. When B and flux are holding steady, what does the induced emf graph look like? What is the size of the induced emf during that time? 4. When flux changes sinusoidally, the current in the loop also changes directions periodically. When does the current change direction? Is it when the field changes direction or at another time? 5. Click on the Changing Area Animation. Flux is steady between 5 s and 7 s. What is the induced emf during this time? What is the induced current? 6. The bar slides back and forth to change the area of the loop. When does current change direction when the bar is furthest left or right or at a different point?
Time:+16.00 Current Changing Magnetic Field. End of Animation Flux vs. Time 5.00 FAN EMA uced Emf vs. Time 5.00 10.00 Time (s) 50.00 0.00 -50.00 50.00 0.00 -50.00 0.00 0.00 10.00 Time (s) 15.00 15.00
in a changing magnetic field. It also displays graphs of magnetic field vs. time and induced emf vs. time 1. The vectors show the field through the loop as a function of time. What do the different colors indicate? 2. What happens to the induced emf if you double the maximum value of the magnetic field? 3. What happens to the induce emf if you double the frequency of the oscillation? 4. Do these results agree with Faraday's law? If so, explain how. If not, explain how the results are different.
↑ A Bx (MT) emf (mv) 10.00 5.00 0.00 -5.00 -10.00 0.00 0.00 - Magnetic Field vs. Time -100.00 200.00 Induced Emf vs. Time 100.00 -200.00 5.00 Time (s) 0.00 10.00 5.00 Time (s) 10.00