6. Thor vs. Magneto continued With all that energy stored up, Thor figures he wi
ID: 1649572 • Letter: 6
Question
6. Thor vs. Magneto continued With all that energy stored up, Thor figures he will simply discharge the capacitor across Magneto, thus driving a large current through the villain. But Magneto is far too clever for such a trick. As the master of magnetism, Magneto knows how to store magnetic energy quite well. That is, Magneto is a living inductor, with L = 40GH, that's 40 billion Henrys of inductance! d) When Thor grabs Magneto, they form an LC circuit (with negligible resistance). The energy simply oscillates back and forth between the two of them. How long will it take for the energy to move completely from Thor to Magneto? Hint: the period of the oscillations, 2/, is how long it takes for the system to get back to where it started. This question is asking for a certain fraction of that time. e) How much current will be flowing through Magneto at that time? Hint: there are two ways to do this. One is to use the explicit I(t) formula from class, the other is to cleverly use energy considerations. Bonus +1 Solve it both ways.Explanation / Answer
(d) Energy oscillation will take take place at twice frequency so time period=T/2=2*pi/2w=pi/w
(e)Energy will be conserved
so let current=I
0.5*L*I^2=energy
I=sqrt(2*energy/L)
(f)His superpower is that he can store charge as well as energy.He can store energy in both forms i.e magnetic field and electric field
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