Recent content by The_General

Exactly. Magnetic fields and electric fields are related by the following Maxwell Equations: E - Electric field intensity vector H - Magnetic field intensity vector B - Magnetic flux density vector Jf - Free current density Considering a linear relation between H and B in a space free of...

Well, you should provide further information. If it's really charging at 400mA/5.6V, I would expect your AA battery to be dead in about an hour, excluding any losses. What's the current flowing from your charger to your phone? About the voltage drop, in spite of your phone saying it's being...

Yes, that's true. Increasing or decreasing voltage in a DC circuit is not so simple. You can use a voltage regulator which dissipates with resistors the additional voltage (very inefficient). On the other hand, if you want to increase the voltage, a more complex system such as a switching mode...

Replied inside the quote. I'll give you some tips. H - magnetic field intensity vector N - turns I - current If you have a closed core with average length C, then you will have the following relation, excluding flux dispersion and a uniform magnetic field within the core: |H|*C = N*I B =...

I had an experiment using an old photocopier from Ricoh, model S-1. It works with a photosensitive paper or metal sheet. First, the sheet is charged by a corona discharge. The image is project on the paper surface. Next, two brushes distribute a charged metallic toner. Ok, the phenomena is...