The electric field intensity in phasor form is given as Es = (4 + j2) ay : a) Find the instantaneous form of the E-field (i.e. write down an equation). b) Use Matlab to find the instantaneous field (i.e. using some line of code operations). c) Assuming that the frequency f is 6 MHz, plot the equation from (a) and the instantaneous field from (b) in the same figure. Are the plots identical? (Hint: You'll have first to look at the formal definition that relates the instantaneous field with the phasor form. The Matlab function "real(...)" will be useful. Note that the frequency is 6 MHz, so make sure that you define the time axis with appropriate time spacing 'dt').