An instantaneous electric field is given by \bar{\varepsilon}(z, t)=\hat{x} 1 e x p^{-06 z} \sin \left(2 \pi f t-0.6 z+\frac{\pi}{4}\right) For a frequency of 2 MHz: a) What is the expression for the E (z)? b) What are the Units on 1, 2nf and 0.6? 5c) What is the maximum value of the displacement current density in oil (&, = 2.3) at position z =5/3m?

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