In the previous unit on electricity and magnetism, we learned how an electric field E exists between two opposite charges q and –q at a distance r from each other. They attract each other, very m...

We just had our minds blown adding up electric field contributions from multiple charges. More complicated electric fields must indicate complications elsewhere. Like how do continuous charge distr...

Now, it’s time to jump into the different but similar world of magnetism. We’ve already learned a bit about magnetic fields, magnets, polarity, the Lorentz force with charged particles moving i...

What else is there to talk about after Biot-Savart and Ampere’s Laws for a current-induced magnetic field? The rest of the family of these fields, of course, which just happens to be pretty large...

Maxwell’s Equations James Clerk Maxwell’s facial hair resembling field lines of both electricity and magnetism sparked his unification of the electric and magnetic forces. SourceBefore the...

Resistors, Capacitors, Inductors, Oh my!SourceWe’ve studied circuits before6: that large conglomeration of protruding wires, resistors, capacitors, inductors, and some type of potential differenc...

Electric FieldsFor multiple point charges, we have to be very careful to add up their contributing electric fields as vectors, or there’s no hope of arriving at a sensible (and correct) answer. C...

1. The permittivity constant ε0 has a value of . Verify that the electric force still has units of Newtons. 2. Darth Vader’s 2 meter long light saber, which can be approximated as a thin rod of...