Electric field lines in a coaxial cable

Electric field lines in a coaxial cable

Electric field lines in a coaxial cable

Originally posted in: www.debipattnaik.com,

This is the first post in an occasional series to simulate a cyclotron.

Before we go on to simulate cyclotrons or particle accelerators , it becomes quite essential to have sufficient knowledge of magnetic fields and electric fields due to a charge (or magnetic dipole) in a spatial configuration .

A basic understanding of the spatial evolution of electric voltage and field/flux can be inferred from a coaxial cable.

Check out the physics for this problem here.

Co axial cables are used to transmit high frequency signals with less interfering effect of external electromagnetic fields. They usually have BNC terminal connectors.

In such a configuration, the inside cable transmits at a given voltage say Vin, and the outer cable is grounded. The equi-potential surfaces around the cable are plotted using 2D Cartesian coordinates.

Get the Matlab code for simulating Electric field lines in a coaxial cable to produce this graph:

 

Electric field lines in a coaxial cable

 

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