Recent content by Imabioperson

Hi Dale, Thank you. Although they may have an equal value, is it that the cross product of the two fields, ExB, is responsible for the energy transfer, with the source of this EM wave being related to the E field induced by the current? I simply want to know what the source of the energy is...

I am having some trouble with discerning whether current (electrons flowing through the Tungsten), or the energy transfer as described by the poynting vector, is responsible for lighting the lightbulb.

What is the relationship between Current and the Poynting Vector? In General Physics, I was stumped by the focus on the relationship between Voltage, Current and resistivity. It appears to me that Energy transfer should be the focus. But if this is true, what is the significance of current...

So, if you take the anti-derivative FIRST... we yield r^-1 in the numerator. And then, we will take the definite integral, leaving us with (1/upper limit - 1/lower limit)? And then do I switch the sign because of the relation between Work and Potential energy?

Hello everyone, This is probably going to come off as a very silly question. However, I have not had calculus in several years. I was angry that my physics textbook did not have a derivation of Electric Potential Energy. So, I finally came across it, and I see that the integration of the...