15-Moonstone

Solved

Resonace frequency

Hello everyone

I want to get the resonace frequency by L-C-R series circuit.

I tried 5 method. Please see attached file.

But I can not get the correct frequency by No.2,3,4,5 in this file.

Please explain...

Best answer by Werner_E

The attached file may help

21-Topaz I

Prime 5

t.t.

Author

15-Moonstone

Hello ttokoro san

I understood I need "assume" condition.

I tried Mathcad 15. In this case I needed "assume,ALL>0" in all case.

In No.5 , I could not get the answer without unit.

21-Topaz II

minimum impedance.jpg

Answer

25-Diamond I

The attached file may help

Author

15-Moonstone

Hello Werner_E san

I understood SOLVE BLOCK or ROOT is good solution.

Thank you for your reply.

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