# Tell if the impedance is complex inductive

question.

One of my HW problems asks the following after you solve it.

Tell if the impedance is complex inductive, capactive, or real resistive.

I said if my answer is of the form, R + 0j it is Real Resistive,

if it is R + N j it is complex Inductive

if it is R - Nj it is complex capacitive.

I said the minus sign on the complex makes it capactive. Is this correct?

Andrew Mason
Homework Helper
cyrusabdollahi said:
question.

One of my HW problems asks the following after you solve it.

Tell if the impedance is complex inductive, capactive, or real resistive.

I said if my answer is of the form, R + 0j it is Real Resistive,

if it is R + N j it is complex Inductive

if it is R - Nj it is complex capacitive.

I said the minus sign on the complex makes it capactive. Is this correct?
I think it is just a convention. The convention is to express the reactance as positive if voltage leads current (inductive) and negative if voltage lags current (capacitive). So you are right.

AM