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.
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: