What type of current did Nikola Tesla advocate for?

• A. Direct current (DC)
• B. Alternating current (AC)
• C. Static electricity
• D. Magnetic current

Answer: (B)

Nikola Tesla is best known for advocating for alternating current (AC) as the preferred method of electricity transmission. His pivotal contributions to the development of AC power systems revolutionized the way electricity is generated and distributed, allowing for efficient long-distance transmission. Tesla's inventions, including the AC motor and transformer, demonstrated the advantages of AC over direct current (DC), particularly its ability to operate at higher voltages which reduces energy loss over long distances.

AC power became the standard for power distribution because it could easily be transformed to higher or lower voltages, making it more flexible and efficient for widespread use. This was particularly significant during the "War of Currents" in the late 19th century when Tesla's AC system eventually triumphed over Thomas Edison's DC system in the market due to its ability to serve larger areas and power more homes and industries effectively. Tesla's work laid the foundation for modern electrical systems, making alternating current the predominant form used today.