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试题名称:电磁场理论1.求直角坐标单位矢量?,?,?与圆柱坐标单位矢量?,?,?之间的关系.(20分)2.有一沿正z方向传播的平面电磁波,其电场强度的复振幅为??式中A_1和A_2均为实常数,试说明此平面电磁波的极化状态,并求出此平面电磁波所到之处的电场强度的有效值.(20分)
(20 points) 2. There is a plane along the positive z-direction electromagnetic wave propagation, the electric field of the electric field The complex amplitude of the intensity is where A_1 and A_2 are both real constants, indicating the polarization state of the plane electromagnetic wave and obtaining the effective value of the electric field strength where the plane electromagnetic wave arrives. (20 points)