Recent content by kodimmudi

"In the helium lamp an electron from the discharge impacts on a He atom, ionises it and at the same time excites it to a superposition of several states. For simplicity, let us consider only the states that are of practical importance and assume that the He+ ion immediately after the impact is...

Actually, that's what my lecturer has written on the board (except for the words "charging a capacitor" and "discharging a capacitor"). Before the sentences was a diagram of a DC circuit with a capacitor and a resistor. I don't know what to make of these notes, really!

My lecturer tells me that the EM energy does not flow through the wire! I don't know what to believe, really! Also, how is this related to Poynting's Theorem?

Let's say you have a DC circuit with a capacitor and a resistor. How does electromagnetic energy flow within the system? Through the wires? In space between and around wires? N.B. Why/how would EM energy flow in the first place?

Homework Statement Charging a capacitor - charge flows through a resistor and is accelerated between the capacitor plates Discharging a capacitor - charge loses energy by collision in the resistor. Homework Equations N/A The Attempt at a Solution Please help understand the two...