Electricity and Plug Systems Around the World

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

• Heating

• Lighting

• Cooking

• Communication

Which of the following is a reason for the introduction of the third earth pin in plugs?

• To allow for faster charging

• To increase the voltage

• To reduce the risk of electric shock

• To make plugs more compact

Why do different countries use different voltages for electricity?

• To reduce electricity costs

• To accommodate different types of appliances

• Because of historical preferences by key figures

• Due to varying climate conditions

Who preferred using electricity at 240 volts, allowing it to travel greater distances?

• James Watt

• Thomas Edison

• Nikola Tesla

• Alexander Graham Bell

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

• The color of the appliance

• The brand of the appliance

• The size of the plug

• The voltage range on the label