Measure the transmission line of a substation. The relation between voltage and current is that the current lags the voltage for 180 degrees, so now I want to ask
Which part of transmission line did I measure, sending end or receiving end?
Is the load an inductive load, a capacitive load or a resistive load?
My answer for 1. and 2. are as below:
I measure it at the receiving end of the transmission line, because I think everyone will want to know about the characteristic of the thing which we receive, not the characteristic of the thing which someone sends. So I think the answer should be "receiving end."
The question says "current lags the voltage for 180 degree", I think it means that \$\theta_i+180=\theta_v\$, that is ,\$\theta_v-\theta_i>0\$, so the load should be an inductive load.
However, the answers are as below:
Resistive load. Why is the load a resistive load, not an inductive load? Can someone tell me the reason?