08. Current affairs

There are two forms of electric current: Alternating Current (AC) & Direct Current (DC).

Direct current is the type of current we encounter in the battery powered circuits we have been using in lessons. Alternating current is the type of current that supplies the electricity that comes from the plug sockets.

Alternating Current was developed by the Croatian Scientist Nikola Tesla.

Direct Current was developed by the American Scientist Thomas Edison.

In this lesson you will research and report on the differences between AC & DC.

You will need to explain:

• • How each type or current works.

  • The advantages of each type of current.

  • The disadvantages of each type of current.

  • Examples of electrical equipment that use each type of current.

Summarise your comparison of the two types of current in an easy to read and understand visual.

Thomas Edison saw Tesla's alternating current as a direct competitor to his direct current. Edison was keen to see his direct current lead the market for the growing market for electricity, so he fought a fierce publicity battle to promote his direct current and to discredit Tesla and his alternating current.

You will be split into two teams to debate the following proposition:

"Nikola Tesla's Alternating Current was the superior invention and he should be celebrated for it."

YouTube: NAT GEO documentary 2015 Edison vs Tesla American Genius

Search on your Google Drive for a debate template shared with you by Mr. Hayes

(Debate Preparation DC vs. AC, Edison vs. Tesla)