An electric field phasor makes an angle of $\omega t$ relative to the x axis. The instantaneous value of the electric field is given by the
A) projection of the phasor along the y axis.
B) magnitude of the phasor.
C) projection of the phasor along the x axis.
D) direction of the phasor.

Question

Quizplus · Accepted Answer

The instantaneous value of the electric field is given by the projection of the phasor along the x-axis, as this represents the real part of the complex phasor at any given time $t$, which corresponds to the actual, measurable electric field at that moment.

An Electric Field Phasor Makes an Angle Of ωt\omega tωt Relative to the X Axis

An Electric Field Phasor Makes an Angle Of $\omega t$ Relative to the X Axis