Right Hand Rule For Poynting Vector

The poynting vector is.

Right hand rule for poynting vector. In physics the poynting vector represents the directional energy flux the energy transfer per unit area per unit time of an electromagnetic field the si unit of the poynting vector is the watt per square metre w m 2 it is named after its discoverer john henry poynting who first derived it in 1884. The very same expression can be obtained directly from the phasors by the following rule. Hold your right hand flat in front of your face with your thumb stuck out on the side at a right angle in the shape of an l. The time average poynting vector is.

Mentally pick a pair of vectors coming out of the same point on the wave. 132 oliver heaviside also discovered it independently in the more general form that. The wave is right hand circularly polarized if at any location in space when the thumb of the right hand points in the direction of propagation the fingers curl in the direction of rotation of the e field vector in a plane perpendicular to the direction of propagation right hand circular polarization. In practice this equation is generally only used to find the direction of one of the three so it helps to remember just the relationship between the unit vectors and the right hand rule.

Ampère s right hand grip rule also called right hand screw rule coffee mug rule or the corkscrew rule is used either when a vector such as the euler vector must be defined to represent the rotation of a body a magnetic field or a fluid or vice versa when it is necessary to define a rotation vector to understand how rotation occurs. Using the right hand rule to find the direction of the cross product of two vectors in the plane of the page. Check it out for yourself. Hat s hat e times hat b s.