Question 14: AC fundamentals

Question

The phasor diagram of a load represents which circuit?

Accepted Answer

As shown in phasor diagram, voltage leads the current.
As in purely inductive circuit, current lags behind the voltage by an angle of 90$$^\circ$$, here angle is not 90$$^\circ$$ but it is lesser than that.
So, this type of case arise in R-L-C circuit when R-L-C load with inductive reactance is more than the capacitive reactance as shown below.

Answer

Purely capacitive

Answer

Purely inductive

Answer

R-L-C circuit with X
L
more than X
C

Answer

R-L-C circuit with X
L
less than X
C

AC fundamentals

The phasor diagram of a load represents which circuit?

Choose the correct answer: