Rise And Fall Of The Clockwork Universe Flashcards
1
Q
How do you create an iterative model for the discharge of a capacitor?
A
- Rearrange ΔQ/Δt = -Q/RC for ΔQ
- Find the new Q by doing Qold - ΔQ
- Repeat for as many iterations as necessary
2
Q
Define the decay constant (λ)
A
The probability that a nucleus will decay in the next unit of time
3
Q
Why does a smaller Δt lead to a better decay model?
A
- The assumption that decay is constant over Δt becomes more accurate
- When plotted on a graph, the curve is smoother and better reflects the exponential nature of decay
4
Q
How do you calculate energy stored in a capacitor?
A
E = 1/2 * Q * V = 1/2 * C * V2 = 1/2 * Q2/C
5
Q
How does resonance occur?
A
When driving frequency is equal to natural frequency
6
Q
What happens to the resonance peak as a system is dampened more on a graph of amplitude against natural frequency?
A
It becomes shorter, wider and shifts to the left.