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8-Gravel
November 25, 2024
Question

Different values for same computation

  • November 25, 2024
  • 4 replies
  • 874 views

For s=10*10^-9 and T =293, I obtain two different values of V_mag. Why? The mcdx file is attached herewith. pls help. I know the correct answer is -0.261 for V_mag.  I wanna plot V_mag/k*T with s later on.

4 replies

25-Diamond I
November 25, 2024

Your sheet is too chaotic for me.

Could you clean it up an show exactly side by side where you get different results you don't expect?

Werner_E_0-1732553974381.png

Different results may mean using different input values and I notice that the value of M (4.8*10^5)  which is disabled on the left hand side is quite different from M(293)=92 which you use on the right hand side ...

 

18-Opal
November 25, 2024

Is this what you want

ppal_0-1732570661636.png

 

23-Emerald IV
November 25, 2024

You should:

- Clean up your worksheet and state clearly (by showing side-by-side) what the difference is you see.

- State  what version of Prime you are using.

- Know that Boltzmann constant and vacuum permeability are in the list of known constants in Prime (Check the constants in the section of Operators and symbols on the ribbon) :

LucMeekes_0-1732574139223.png

LucMeekes_1-1732574147130.png

Success!
Luc

 

Catalina
Community Moderator
November 29, 2024

Hi @ajay94_shan ,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution or please feel free to detail in a reply what has helped you and mark it as the Accepted Solution. It will help other members who may have the same question.
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Thanks,

Catalina | PTC Community Moderator