Blow your nose. Before using the nasal spray, you need to clear your nasal passages. Otherwise, the medication might get caught in the front of the nostril, where it will be less effective. Blow your nose until you have completely cleared your nostrils. 1  Do not blow your nose after using the spray.
The basic difference is the pin of the transistor that is grounded. The common collector has the collector pin grounded, common emitter has the emitter pin grounded and common base, as you guessed it, has the base pin grounded. The following article explains the differencnes perfectly.
Now if your speaker is a perfectly resistive load, your 10 ufd series capacitor will be a perfect passive 6 db per octave High Pass (HP) filter. Don't worry, life is not that simple. The other important element used in a crossover network is the Inductor; sometimes called a choke, and sometimes called a coil. They are all refer to the same thing. The Inductor is in many ways the inverse of the capacitor.