# Category Archives: Electromagnetism

## Electromagnetic waves and their features

Q: How the electromagnetic waves are produced? Ans: We know that a charge at rest produces an electric field around it but no magnetic field where a moving charge produces both electric and magnetic fields but if the charge is … Continue reading

## More characteristics or properties of transverse electric and magnetic waves in parallel planes

Last time I have discussed the few characteristics or properties of transverse electric and magnetic waves in parallel planes. Let us discuss more properties of TE and TM waves like cut-off wavelength, guide wavelength, phase velocity, group velocity: (a) Cut … Continue reading

## CHARACTERISTICS OF TRANSVERSE ELECTRIC AND TRANSVERSE ELECTRIC WAVES

The characteristics or properties of transverse electric (TE) and transverse magnetic (TM) in parallel planes or plates waves can be studied with the help of propagation constant gg for these waves. (a) Propagation Constant in parallel planes γg  = √ K2g … Continue reading

## Transverse magnetic waves in parallel planes

DEFINITION TRANSVERSE MAGNETIC (TM) WAVES OR E WAVES   : In this case, the component of magnetic field vector H lies in the plane transverse to the direction of propagation that is there is no component of H along the direction … Continue reading

## Transverse electric waves

DEFINITION TRANSVERSE ELECTRIC (TE) WAVES OR H WAVES IN PARALLEL PLANES: In the case, the component of electric field vector E lies in the plane transverse to the direction of propagation that is there is no component of E along … Continue reading

## Waves between parallel planes

Let us discuss how waves propagate through parallel planes and derive the necessary relation of transverse electric and magnetic waves: Assumptions : (a)  Pair of parallel planes are perfectly conducting. (b)  Separation between the planes is ‘a’ meter in x … Continue reading

## Poynting theorem and derivation

Poynting Theorem Statement. This theorem states that the cross product of electric field vector, E and magnetic field vector, H at any point is a measure of the rate of flow of electromagnetic energy per unit area at that point, … Continue reading

Posted in Electromagnetism | Tagged | 3 Comments

## Potential At A Point Due To An Electric Dipole

Let us calculate Potential At A Point Due To An Electric Dipole:- Let an electric dipole consist of two equal and opposite point charges – q at A and +q at b ,separated by a small distance AB =2a ,with … Continue reading

Posted in Electromagnetism | 2 Comments

## Electric Potential Due To Single Charge Or Point Charge

let us discuss and derive the electric potential due to single charge or point charge. We will calculate electric potential at any point P due to a single point charge +q at O ;where OP=r Electric potential at P is … Continue reading

## Electric potential and electric potential difference

let us today discuss the the concept of electric potential and electric potential difference. Electric Potential Electric Potential at a point in an electric field is defined as amount of the work done in moving a unit positive test charge … Continue reading