These responses seem to be related to a discussion about the War of the Currents, which involved the competition between alternating current (AC) and direct current (DC) systems for electrical power distribution. Here's a brief evaluation of each response:
A. AC reverses direction and can be converted to lower or higher voltage. - This is true. AC voltage changes direction periodically, and it can easily be transformed to different voltage levels using transformers, making it suitable for long-distance transmission.
B. AC has distinct advantages over DC, so AC won the War of the Currents. - This statement is largely accurate. AC systems ultimately became the standard for electrical power distribution due to their efficiency in transmitting electricity over long distances.
C. Thomas Edison and Nikola Tesla were competitors. - This is correct. Edison was a proponent of DC, while Tesla championed AC, leading to their rivalry during the War of the Currents.
D. By the late 1800s DC was used in the United States. - This statement is also true. DC power systems were indeed in use during the late 1800s, particularly in urban areas, but they were eventually supplanted by AC systems.
Overall, all the provided responses reflect factual aspects of the historical context around the War of the Currents and the development of electrical systems.
1 answer