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What is the electric field around a non-current carrying wire?

Is there an electric field around a DC energized wire that has no appreciable current flowing through it? If "energized" means charged, then yes. If so why is there no interaction between ...
• 28.4k
Accepted

Why don't charges on surface of current carrying wire move?

The entire wire feels a constant $\vec E=\rho\vec J$ field, and the constant $\vec J$ flow of current means that every bit of the surface charge that flowed tangentially to the next bit of the wire, ...

• 16.7k
1 vote

Electric field at a point due to dielectric inserted in between a parallel plate capacitor

The induced charges on the dielectric will attract the charges on the plates. Since the dielectric is inserted partially between the two plates, the charge on the plate near the dielectric will ...
• 513
1 vote

Electric field at a point due to dielectric inserted in between a parallel plate capacitor

Consider the situation before the dielectric was introduced (left diagram) and after the dielectric was introduced (right diagram). There are two possible scenarios. The first is when the capacitor ...
• 98.1k
Let me ask , what is Electric field due to a single plate of charge of density $\sigma$ ? It's : $$E_{single}= \frac{\sigma}{2\epsilon_0}$$ Even though there is polarization of the dielectric , but ...