Read the passage.
AC vs. DC
In the 1880s, the War of the Currents began. Thomas Edison develo...
Read the passage.
AC vs. DC
In 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 idea of the passage?
AC has distinct advantages over DC, so AC won the War of the Currents.
AC reverses direction and can be converted to lower or higher voltage.
What is the main idea?
Answers: 3
English, 21.06.2019 23:00
Which word is an example of an iamb mother underneath heartbreak today
Answers: 2
English, 22.06.2019 04:10
Which counter claim is most effective against this claim? rob's essay includes
Answers: 2
English, 22.06.2019 06:00
Something you may do if the weather's nice on sunday. -something you might not want to do this evening. -something you could go on aaturday evening. -something you could wear to a party. -somebody you might see in the next couple of days. -a subject you could study at college or university. -somewhere you might go on holiday .
Answers: 2
English, 22.06.2019 07:50
How does the reputation of the author convey authority? from ''city upon a hill''
Answers: 3
Social Studies, 08.03.2021 20:50
Mathematics, 08.03.2021 20:50
Computers and Technology, 08.03.2021 20:50
Mathematics, 08.03.2021 20:50
Biology, 08.03.2021 20:50
Mathematics, 08.03.2021 20:50
Mathematics, 08.03.2021 20:50
Biology, 08.03.2021 20:50
History, 08.03.2021 20:50
Mathematics, 08.03.2021 20:50