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Calculate Impedance, Power Factor & Type Of Power In RLC Circuit

Good Evening 

 

No suprises to what im looking to investigate today. 

 

I have a initial circuit which contains a AC supply, Resistor and Inductor only, I must calculate the impedance, supply current, power factor & angle, and type of power that is consumed in the circuit. 

 

I must then create a modified circuit in which i must improve the power factor to 0.95 and specify the value of capacitance required!

 

I must then calculate the impedance, supply current, power factor & angle and the type of power consumed in the circuit. 

 

I have never really used multisim before, just want to make sure my calculations are correct as the values I have been given to work with are producing tedious amounts of impedance. My XL=24kOhm Smiley Indifferent

 

I have tried to use the impedometer but not quiet sure how to wire it correctly. Same goes for the watt meter not sure how to wire the terminals for V and I. 

 

Appreciate any help and advice I have provided some images of my initial circuit I have not specified the value of C as im not sure what it must be to give me a PF of 0.95. 

 

Regards 

 

Ps pardon the amatuer mistake forgot to add a ground (fool)

 

Carl

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Those circuits are simple enough that you can readily calculate the values manually. So you should be able to check the results of your simulations against the analytic results.

 

XL = 2*pi*f*L = 75.4 kohm.

 

Lynn

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HI Lynn

 

That is correct, I have already manually calculated the results mathematically. I just need to provide simulation evidence that they are correct.

 

Thus I am asking how can I obtain these results from multisim components and instruments!

 

Appreciate your help

 

Hass

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Hi Hass,

 

Here is an article on Calculating the Impedance in Multisim.

 

http://digital.ni.com/public.nsf/allkb/9F8D30235DE3EC0186257592006B23A2

 

Similarly, you can add Expression to Calculate the Power Factor or other circuit parameters.

 

Hope this helps!

 

Regards,

 

Chen_T
National Instruments
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