If the reading of the voltmeters vary with time as: `V_(1) = 20 sin omega t` and `V_(2) = - 20 cos (omega t + (pi)/(6))` then the unknown circuit element `x` is a:

Options

A. pure (or ideal) inductor
B. practical inductor
C. pure (or ideal) capacitor
D. practical capacitor

Answer

D

Explanation

`V_(2) = - 20 cos (omega t + (pi)/(6)) = 20 sin (omega t - (pi)/(3))`
The element `x` is practical capacitor