War of the Currents

In the late 19th century, Thomas Edison held a monopoly over the electricity market with his direct current (DC) system, despite its inefficiencies over long distances. Nikola Tesla introduced alternating current (AC), which could transmit power over greater distances. This led to a fierce rivalry known as the War of the Currents. Edison launched a smear campaign against AC, associating it with danger, even funding the electric chair's development. Despite his efforts, AC prevailed and remains the dominant form of electricity supply today, cementing Tesla's legacy over Edison's.

What was a major drawback of Edison's direct current system?

• It lost power over long distances.

• It caused frequent power outages.

• It was difficult to install.

• It was too expensive to produce.

What was the key advantage of Tesla's alternating current system?

• It could transmit power over long distances.

• It required less maintenance.

• It was safer than direct current.

• It was cheaper to produce.

Who partnered with Tesla to commercialize alternating current?

• Thomas Edison

• George Westinghouse

• Alexander Graham Bell

• Henry Ford

What tactic did Edison use to discredit alternating current?

• He lowered the price of direct current.

• He improved the efficiency of direct current.

• He collaborated with Tesla.

• He funded the invention of the electric chair.

What is the dominant form of electricity supply in the 21st century?

• Nuclear power

• Direct current

• Alternating current

• Solar power