What is the difference between AC and DC currents?
Question
What is the difference between AC and DC currents?
Solution
AC and DC are two different types of current that are used for transmitting electricity.
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AC Current: AC stands for Alternating Current. In this type of current, the flow of electric charge periodically reverses direction. AC is the form of electric power that is delivered to businesses and residences. The usual waveform of an AC power circuit is a sine wave, as this results in the most efficient transmission of energy.
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DC Current: DC stands for Direct Current. In this type of current, the flow of electric charge is only in one direction. It is the unidirectional flow of electric charge. DC is commonly found in most electronic devices, such as cell phones, laptops, and batteries.
The main difference between AC and DC lies in the direction in which the electrons flow. In DC, the electrons flow steadily in a single direction, or "directly." In AC, electrons keep switching directions, sometimes going "alternatively" forward and then backward.
Similar Questions
Compare and contrast the advantages and disadvantages of AC and DC currents in terms oftransmission and use in various applications
AC vs. DCIn the 1880s, the War of the Currents began. Thomas Edison developed direct current, or DC, a type of electricity that flows in one direction. By 1887, DC was in use around the United States. It had some drawbacks, though. Converting it to lower or higher voltages was difficult; that is, the current's force couldn't be changed easily. Transmitted at the low voltage needed for use in homes and businesses, it lost power after traveling only a mile. Meanwhile, Nikola Tesla was working with alternating current, or AC. AC reverses direction many times per second and can be changed to different voltages. At high voltage, it can be transmitted efficiently, traveling hundreds of miles with little energy loss. Because of its advantages, AC triumphed by the end of the nineteenth century.What is the main, or central, idea of the passage?
Why do transformers work with AC and not DC?*1 pointElectromagnetic induction requires changing magnetic flux produced by AC.Electromagnetic induction requires changing magnetic flux produced by DC.AC produces a magnetic field but DC does not.DC is too high for transformer operation.
Which refers to the path of an electric current?
A coil has resistance 30 ohm and inductive reactance 20 Ohm at 50 Hz frequency. If an ac source, of 200 volt, 100 Hz, is connected across the coil, the current in the coil will be :
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