Medhursts self resonant frequency, charge and di/dt. (fwd)

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---------- Forwarded message ----------
Date: Tue, 16 Oct 2007 21:22:33 -0400
From: Jared Dwarshuis <jdwarshuis@xxxxxxxxx>
To: Pupman <tesla@xxxxxxxxxx>
Subject: Medhursts self resonant frequency, charge and di/dt.

Medhursts self resonant frequency, charge and di/dt.







Last time we showed that capacitance was described as:



Cap. = 4 e H/ pi (2n)



We also know that we can write voltage as:



V = L di/dt



V = ( Wire length /  C )sqrd  / (2n) 4 pi e H     di/dt



We also know that:     Q = Capacitance x Voltage



Solving for di/dt  (the second derivative of charge with respect to time)



di/dt =  Q ( 2 pi C n / Wire length)sqrd



equivalently as:



di/dt = Q   ( 2 pi C (2n) / Wave length )sqrd



Interpretation:



Charge is like the field of wheat. Energy is like the wind that blows across
the field of wheat.



The wheat has no net displacement over time, it returns to equilibrium
after
the wave has departed.



 But we can stand back and see that the wheat does accelerate and decelerate
when the wave passes through.



 We know that it has accelerated and decelerated because it cannot go from
zero velocity to any velocity greater than zero without accelerating. And it
cannot go from a Velocity greater than zero to zero velocity without
decelerating.



Jared Dwarshuis  and Lawrence Morris



Oct. 07