Want to know how a capacitor works? Try making your own from kitchen foil!Books for older readersOpen Circuits by Eric Schlaepfer and Windell Oskay. No Starch Press, 2022. Wonderful cutaway photos of eight different capacitors (including ceramic disc, glass, multilayer ceramic, electrolytic, film...
which obviously have to be conductors of electricity. This is the key to how and why a battery works: one of the materials "likes" to give up electrons, the other likes to receive them. If both electrodes were made from the same material...
What is the universal definition of density and how would you explain electrical field intensity? How does the Earth work, as an omnipresent, conductive surface, in an electrical distribution system? What do you mean by ohmmeter? What happens when capacitor is earthed?
Explain these three enclosed formulas and give examples of how they are used in calculating special \Delta {t_1} = \Delta {t_0 \over {\sqrt {1 - {v^2 \over c^2 , \Delta {t_2} = \Delta {t_0} \times \sqrt...
a) Thermal expansion. b) Thermal conductivity. Explain how a strain gauge works. Two wires, A and B, have Young's moduli in the ratio 1:2 and the ratio of lengths is 1:1. Under the application of same stress, what is the ratio of elongations? Explain why the voltage ...
Having said that, you can get away with not bringing everything to a common point by giving every IC its own local short term energy store. Like Mike Green says, these are called "bypass" capacitors and a really common capacitor is a 0.1uF capacitor mounted next to every IC acro...
Title text:New phone OS features: Infinite customization (home screen icons no longer snap to grid), dark mode (disables screen), screaming mode (self-explanatory), and coherent ultracapacitor-pumped emission (please let us know what this setting does; we've been afraid to try it). ...
I did not replace any of the caps in this part of the circuit and am thinking of doing that. I am not sure how this much heat is generated on a relatively small current draw... As for the MIDI controller, its processor gets very hot when powered up and it does nothing. A new pro...
Animation: How a loudspeaker works. When a fluctuating electric current flows through the coil (orange), it becomes a temporary electromagnet, attracted and repelled by the permanent magnet (blue/red). As the coil moves, it moves the cone (gray) back and forth, pumping sound waves into the...
DRAM is more dense (stores more information in less space) because it uses just one capacitor and one transistor to store each bit (binary digit) of information, where SRAM needs several transistors for each bit. Photo: Most memory chips are two dimensional, with the transistors (electronic ...