Transformers

So i just woke up from a nap, and I figured that I should do my blog before I forgot. I don't know if it's just me, but this weekend seemed to pass a lot faster than other weekends. Congrats to the basketball team! It was a crazy game. Bummers adam didn't get to play, but I saw that bad boy in the honolulu advertiser today. lucky dawg. Ok well, after doing a lab about transformers, and after hearing doc ramble about transformers even though everyone basically had their head down and was falling asleep, I realized that transformers were everywhere around my house. My phone charger is a transformer, and a lot of appliances used transformers to operate. Transformers either lower or raise the potential differences of an alternating current, but the ones in my house lower the voltage. These transformers use secondary and primary windings of coil around magnetic core like iron, and since alternating current runs through the primary coil, it creates a changing magnetic field in the secondary windings. This change in magnetic flux induces a current in the second wire, and the emf is changed to match a resistor of some sort to cause an emf and a current that is desired.