Thanks for the reply. I haven't bought anything yet. I wanted to read and ask about it first.
What if I used a 9V battery and a copper wire then use a potentiometer to regulate the current to 4A. Will the copper wire heat up? I'm asking this just to satisfy my curiosity, so let's neglect the...
I am planning to build a foam cutter by heating up a piece of nichrome wire. I found that nichrome has a relatively high resistance compared to other conductors and it is the reason why it is used as a heating element. That is what confuses me because I think it only applies for constant voltage...
I'm confused about the need for a fourth fundamental circuit element. I learned that the idea of the memristor was conceived by observing the symmetry of the equations for charge, flux, current and voltage. We have, i=dq/dt , v=dphi/dt. Rrom the three elements: dV=Rdi, dphi=Ldi, and dq=Cdi...
I'm using the book of Jerome Keisler: Elementary calculus an infinitesimal approach. I have trouble understanding the proof of the following theorem. I'm not sure what it means.
Theorem: "An increasing sequence <Sn> either converges or diverges to infinity."
Proof:
Let T be the set of all real...