![subject](/tpl/images/cats/en.png)
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? 1. AC reverses direction and can be converted to lower or higher voltage. 2. AC has distinct advantages over DC, SO AC won the War of the Currents.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on English
![question](/tpl/images/cats/en.png)
English, 21.06.2019 19:00
As it is used in section 1, what does unctuous mean? a) greasy or soapy b) soft or fragile c) traditional or elite d) hypocritical or insincere
Answers: 1
![question](/tpl/images/cats/en.png)
English, 22.06.2019 02:30
Which event occurred in the nearly two-year time span between act 3 and act4 of the tragedy of julius caesar?
Answers: 1
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 22.06.2019 09:30
From reading the first section of the legend of sleepy hollow, how would you identify this genre of literature?
Answers: 1
You know the right answer?
AC vs. DC In the 1880s, the War of the Currents began. Thomas Edison developed direct current, or DC...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.02.2022 01:40
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.02.2022 01:40
![question](/tpl/images/cats/health.png)
Health, 11.02.2022 01:40
![question](/tpl/images/cats/mat.png)
Mathematics, 11.02.2022 01:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.02.2022 01:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 11.02.2022 01:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 11.02.2022 01:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 11.02.2022 01:50
![question](/tpl/images/cats/biologiya.png)
Biology, 11.02.2022 01:50