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Series and Parallel Circuits
Transcript of Series and Parallel Circuits
(If an object is still plugged in but off, power is still flowing. "Vampire Energy" Loads use electric energy to do work. They have resistance to current and cause electirc energy to change to other forms. Series and Parallel Circuits All the parts are connected on one, continuous loop. (one path for the electric current to flow through) If one bulb goes out, or there is a break in the circuit anywhere, everything will go out. If you add more lights, they will be dimmer because the resistance will increase and the current will decrease. One of the disadvantages of using a series circuit is that if one bulb goes out they all will. That's just not practical for usage in a home or really anything that requires multiple lights. Another disadvantage is that the the bulbs become dimmer as more are added. Again, that just lowers it practicality for use in a home. On the other hand, one of the advantages of using a series circuit is that it's easy to detect a problem within the circuit. Examples: automatic door at grocery store, bank alarms, some street lights, some computer circuits Load Energy/power source Switch Path Different loads located on seperate branches. Charges follow multiple paths Because the current is not the same, each load uses the same voltage, so the lights burn the same no matter how many are added. If the circuit is broken or a bulb goes out, not all of them will go out, unless the break is near or next to the power source. One of the major advantages of using a parallel circuits is that not all of the lights will go out if one shorts or breaks. That just makes it more practical for usage in homes and businesses. Another advantage is that all the bulbs will burn the same. One of the disadvantges is that if you add more bulbs, more current will be used, and the battery will drain faster, even more so than in a series circuit. Examples: circuits in homes, restaurants, stores, businesses, etc. Path Switch Load Power source Note that there are multiple paths for the elcetricity to flow through Note that there is only one path for the elcetricity to flow through