## RaphaelFilgueiras 3 years ago find one equation for the oscillation frequence,of a electrical dipole with moment (p),and moment of inertia (I),for small oscillation in presence of a uniform field (E).

1. RaphaelFilgueiras

@experimentX

2. experimentX

|dw:1344729298865:dw|

3. experimentX

no ... p is Electric Dipole and E is Electric field.

4. experimentX
5. experimentX

lol ... why is this in history ... section?

6. RaphaelFilgueiras

lol i dont know ,just see it now

7. RaphaelFilgueiras

how can i move?

8. experimentX

|dw:1344729545214:dw|

9. experimentX

not sure ... just don't tag me in History or Bio or Che section.

10. RaphaelFilgueiras

i posted it in physics

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|dw:1344729750484:dw| solve this Differential Equation ... this is not easy (this is non linear) to find out the complete solution.

12. RaphaelFilgueiras

ok i will try

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but if |dw:1344729818258:dw||dw:1344729852382:dw|

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also to be harmonic ... i think it should be |dw:1344729978494:dw| anyway ... try to solve that.|dw:1344730004744:dw|

15. RaphaelFilgueiras

ok thanks experiment

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also if you are considering for large angle ... refer this http://en.wikipedia.org/wiki/Pendulum_(mathematics)#Arbitrary-amplitude_period

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the solution of that non linear DE must be similar http://hyperphysics.phy-astr.gsu.edu/hbase/pendl.html

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yw

19. RaphaelFilgueiras

|dw:1344730427991:dw|

20. RaphaelFilgueiras

$\tau= -E.Q.(d/2)-E.Q.(d/2)=E.p.\sin(\theta) \approx -E.p.\theta=-K.\theta$ $T=2.\pi.\sqrt{I/k}=2.\pi.\sqrt{I/E.P}->f=(1/2\pi).\sqrt{E.P/I}$

21. experimentX

most probably ... :) i'm not pretty sure though

22. RaphaelFilgueiras

it's rigth for sure

23. RaphaelFilgueiras

first time i try to do by energy conservation,but i get two times this answer,this is the correct one in book

24. RaphaelFilgueiras

the book give only the final value

25. experimentX

i guess it is ... then.

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