What is Poynting vector used for?
Due to the fact that the Poynting vector represents the field’s energy flux density, its physical unit is watts per square metre (W m−2). Consequently, the Poynting vector provides information about the direction of propagation of the EM field and information about the direction of energy transport in the EM field.
What is Poynting theorem in electromagnetic theory?
In electrodynamics, Poynting’s theorem is a statement of conservation of energy for the electromagnetic field,, in the form of a partial differential equation developed by British physicist John Henry Poynting.
What is the curl of the vector?
In vector calculus, the curl is a vector operator that describes the infinitesimal circulation of a vector field in three-dimensional Euclidean space. The curl at a point in the field is represented by a vector whose length and direction denote the magnitude and axis of the maximum circulation.
What is the direction of Poynting vector Mcq?
The direction of Poynting vector is perpendicular to the direction of propagation of wave.
Is the vector is irrotational E YZ I XZ J xy k?
You can study other questions, MCQs, videos and tests for Electrical Engineering (EE) on EduRev and even discuss your questions like Is the vector is irrotational. E = yz i + xz j + xy ka)Yesb)NoCorrect answer is option ‘A’.
Which of the following is a vector quantity Mcq?
What is the answer to this MCQ – ‘Which of the following is a vector quantity? ‘ The options for the question are ‘Which of the following is a vector quantity?’ The answer is ‘Momentum’.
When a non zero Ex component and zero ey component is present the Polarisation will be?
Explanation: When the Ex is non-zero and the Ey is zero, the polarisation is parallel. The parallel polarisation is classified under the linear polarisation type.
When the phase angle between the Ex and Ey component is 0 or 180 degrees the Polarisation is?
When the phase angle between the Ex and Ey component is 00 or 1800, the polarisation is. Explanation: The phase angle between the Ex and Ey component is 00 and 1800 for linearly polarised wave. The wave is assumed to be propagating in the z direction.
What is Ellipticity angle?
The degree to which the ellipse is oval is described by a shape parameter called eccentricity or ellipticity, defined as. = arctan(b/a), which can take values between -45° and +45°.
Which equation will hold a good magnetic material?
Which equation will hold good for a magnetic material? Explanation: We know that the divergence of B is zero. From Stokes theorem, the surface integral of B is equal to the volume integral of divergence of B. Thus surface integral of B is also zero.
Why a single magnetic pole does not exist?
If a bar magnet is cut in half, it is not the case that one half has the north pole and the other half has the south pole. Instead, each piece has its own north and south poles. A magnetic monopole cannot be created from normal matter such as atoms and electrons, but would instead be a new elementary particle.