Zip Codes Are Not Based on Geography. ZIP Codes were created to expedite mail processing, not to identify neighborhoods or regions. Their boundaries are based on the logistical and transportation needs of the United States Postal Service and not on neighborhoods, watersheds, or community cohesion.
An electron is accelerated inside a parallel plate capacitor. The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity ?. The distance between the plates is 18.0 cm, and the voltage difference is 129 kV.
In the NPN transistor in what is called active mode, the baseâemitter voltage and collectorâbase voltage are positive, forward biasing the emitterâbase junction and reverse-biasing the collectorâbase junction.he remainder of the holes recombine with electrons, the majority carriers in the base, making a current through the base connection to form the base current, . As shown in the diagram, the emitter current, , is the total transistor current, which is the sum of the other terminal currents (i.e., I E = I B + I C).