In some experiments together with the generator are series resistors with
100 Ohm to 1K-Ohm recommended.
Compared to the normal light bulb the LED does not have a filament. They
have a long durability and do not consume a lot of energy.
Fig.3.09: The connections of the LED: the longer
end of the wire is the cathode, the “negative
connection”, also marked through a flattened
enclosure
Fig.3.10: flashing LED with integrated flash-IC
3.1.6 Electrolytic (Electrolytic capacitors)
Electrolytic capacitors have a high capacity compared to normal capacitors.
One can imagine the capacitor with 2 metal plates (as it is usually shown in
the circuit symbol). The first “plate” insulated by an oxide-layer (dielectric).
The “second” plate consists out of an electrolyte, which gives the name to
the capacitor. Due to the electrolyte, an electrolytic capacitor is polarity-
dependent and the connections are designated with a positive pole and a
To Next Page
Loading...
