RCL-parallel, I know current's but how to calculate Z?

Thread Starter

Jeo

Joined Nov 26, 2006
2
Hi!
I got RCL-parallel, I know current I (for Z), Ir, Ic and Il, so how can I calculate the Z from these informations? (I know voltage source value 10V , R 500 ohm ,L 2,5 mH and C 0,7 uF but it was mentioned that calculate Z with only using currents).

Jeo
 

Papabravo

Joined Feb 24, 2006
12,775
Ohm's law my friend
Rich (BB code):
if V = I * Z then
 
Z = V / I
That's not acting...It's ALGEBRA!
To compute the branch impedances you don't need the inductance or capacitance values.
To compute the reactances you also need to know the frequency.
 

Thread Starter

Jeo

Joined Nov 26, 2006
2
I know that E=IZ but if I need to calculate Z only using branch currents (I know frequency)? Any ideas? There is something about "I is equal to Z and Ic equal to Xc".. Meaby I cheat and use ohm's law..
 
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