can the value of resistance be added to the value of impedance?

Question

e.g if a circuit had 12ohms resistance, with 10ohms impedance
can these both values be added together giving total resistance?

Answer 1

ok a simple equation may help z=square root of the follwong (resistance suared plus the suare root of xl minus xc). So it can be added to give you z the total impedance. The answer to your question would would be there fore the square root of (144 +100).
If you come across a question with power facor then you would use r/z.

XL= total inductance
Xc= total capacitance
Z=total impedance
R=resistance

Any more detail needed just contact me.

Answer 2

Not directly. You need to use complex arithmetic and put j (square root of minus 1) in front of the reactive part of the impedance. The impedance by the way is the square root of the sum of the squares of the resistance and the reactance. The resitance is part of the reactance. Here's a better explanation.

http://en.wikipedia.org/wiki/Electrical_impedance

Answer 3

the impedance component is a vector and consists of an x and y components x is resistance and y is inductance. so to add you need to convert the impedance to resistance and inductance and add the resistance's together and then convert back to impedance. see complex No's polar and rectangular(or cartisian)

Answer 4

Yes if you only have resistors in your circuit