Recent content by AeroKaro

Homework Statement Suppose we have a rod of length L oriented on the z-axis so that the bottom end is at z= - L/2 and the top end if at z = L/2. Furthermore, the rod is uniformly charged with charge density 'λ'. Now we are interested in finding the electric field at a point x away from the...

while doing some reading, I have though of another question, I see a lot of discussion about currents having with time. That seems all well but is there also such thing as a current changing in position? I was thinking if the wire was not uniform like the radius changes.

Homework Statement Current density is the amount of current per cross sectional of flow. I'm having trouble wrapping my head around this definition. Surface charge or volume charge I understand better since they are almost analogous to the density we all understand (amount of matter/charge...

so Coulomb's law is strictly for charges that are held fixed in space, somehow. In other words it is not a good way of predicting the motion that the charges undertake

Homework Statement We know that coulomb's law describes the force between two charged bodies as proportional to the magnitudes of the charges and inversely proportional to the square of the distance. Of course, like charges repel and unlike attract. Now theoretically, if we placed two...