AC/DC: The Savage Tale of the First Standards War by Tom McNicholAC/DC tells the little-known story of how Thomas Edison wrongly bet in the fierce war between supporters of alternating current and direct current. The savagery of this electrical battle can hardly be imagined today. The showdown between AC and DC began as a rather straightforward conflict between technical standards, a battle of competing methods to deliver essentially the same product, electricity. But the skirmish soon metastasized into something bigger and darker. In the AC/DC battle, the worst aspects of human nature somehow got caught up in the wires; a silent, deadly flow of arrogance, vanity, and cruelty. Following the path of least resistance, the war of currents soon settled around that most primal of human emotions: fear. AC/DC serves as an object lesson in bad business strategy and poor decision making. Edisons inability to see his mistake was a key factor in his loss of control over the operating system for his future inventions—not to mention the company he founded, General Electric.
AC vs. DC
What is more dangerous AC & DC ?
An AC current is alternating in nature and follows a sine curve. It is continuously changing direction and passing through zero to a maximum positive value and then to a maximum negative value. It means that a V AC supply is going to Volts before coming down to zero and changing direction. DC current is direct current and does not change in magnitude, though it can be negative or positive depending on the direction of the circuit. DC current is ideal for electronic circuits whereas AC is ideal for electrical installation and motors, etc.
Electric current is defined as the rate of flow of negative charges of the conductor. For an electric current to occur, it has to be conducted through a material. When the flow of electrons provided by electricity finds a resistance, it results in a dissipation of energy in the form of heat. If there is an excessive amount of heat generated, the tissue may be burnt. Physiologically, the difference between a normal burn and a burn caused by electricity is that electricity has the ability to burn tissue beneath the skin, even burning internal organs without apparent external evidence of it. The contact with electric current can have various effects on the human body such as pain, burns or even death. This can cause serious burns, both inside your body and on your skin.
Now, while it can be surmised that AC is more dangerous than DC, the safest solution is to avoid contact with any and all high-voltage electrical.
english speaking piano teacher hong kong
Difference between AC and DC Current
What's new. Log in Register. Search titles only. Search Advanced search…. Log in.
One looks like a straight line, the other a wave; together, they power your laptop…. Alternating current AC and direct current DC are notable for inspiring the name of an iconic metal band, but they also happen to sit right at the center of the modern world as we know it. AC and DC are different types of voltage or current used for the conduction and transmission of electrical energy. Electrical current is the flow of charged particles, or specifically in the case of AC and DC, the flow of electrons. According to Karl K.
Register now or log in to join your professional community. AC has high voltage when compared with DC. One of the reasons that AC might be considered more dangerous is that it arguably has more ways of getting into your body. Since the voltage alternates, it can cause current to enter and exit your body even without a closed loop, since your body and what ground it's attached to has capacitance. DC cannot do that. Also, AC is quite easily stepped up to higher voltages using transformers, while with DC that requires some relatively elaborate electronics.