Determine N and thetime-averaged flux density through the plane z = 0 for the wave

Explain why it is necessary to use physical electric and magnetic fieldswhen determining the Poynting vector N. Determine N and thetime-averaged flux density through the plane z = 0 for the wave.

The electric field of a plane electromagnetic wave propagating along the z-axis varies with time with an amplitude of 2 V m−12 V m-1. The average energy density of the magnetic field (in J m−3J m-3) is :Take: ε0=8.854×10−12 F

The electric field in a region is given as  →E=(3ˆi+4ˆj+ˆk)N/C𝐸→=(3𝑖^+4𝑗^+𝑘^) N/C . The flux of this field linked with a square of surface area 10 cm2 kept parallel to x-z plane is

Given 5.0||)5.0(4)( 2 >+= zzzzX Find the Z-Transform of the following signals.(a) y[n] = x[ n – 2] (b) e[n] = x[–n] (c) d[n] = 2n x[n] (d) s[n] = x[n] * x[n]A N S :4(a) 2)5.0z(zz4)z(Y += |Z| > 0.5 (b) 2)2(16)(+=zzE (c)1||:)1(8)( 2 >+=

A uniform electric fieldˆˆ ˆ 4E i j k= + + exists in space. Find out the electric flux through asquare ring of edge length 3 m placed in x-z plane