Sockets & Voltages In Different Countries

The video tutorial explores the differences in electrical voltages and plug sockets across the world. It delves into the historical development of electricity, highlighting the contributions of Nikola Tesla and Thomas Edison. The video explains the evolution of plug designs, including the introduction of the Earth pin for safety. It discusses the voltage variations between regions, such as 120 volts in America and 220-240 volts in Europe, and how modern appliances are designed to handle dual voltages. The tutorial also covers the role of the National Grid and transformers in electricity transport, emphasizing the importance of using the correct plug adapters when traveling.

What was the primary use of electricity when it first became available to homes in the 1880s?

• Heating

• Communication

• Lighting

• Cooking

Which of the following is a reason for the lack of a standard voltage worldwide?

• Varied appliance designs

• Historical preferences of key figures

• Different climate conditions

• Government regulations

Who preferred using electricity at 240 volts for its efficiency over long distances?

• Nikola Tesla

• James Watt

• Thomas Edison

• Alexander Graham Bell

What should you check on an appliance to ensure it can handle different voltages?

• The brand of the appliance

• The label on the appliance

• The color of the appliance

• The size of the plug

Why are transformers necessary in electricity transport?

• To change the shape of plugs

• To adjust the voltage of electricity

• To increase the speed of electricity

• To reduce electricity costs