Understanding Electric Kettles

The video explains how electric kettles work, focusing on the metal coil at the bottom that heats water through electrical resistance. It discusses design variations, such as kettles with a plate covering the coil, and highlights the role of thermostats in automatically switching off the kettle when the water reaches the desired temperature. Viewers are encouraged to subscribe for more information.

What is the primary function of the metal coil in an electric kettle?

• To cool down the water

• To generate heat by electrical resistance

• To provide structural support

• To filter impurities from water

Which component is responsible for converting electrical energy into heat in an electric kettle?

• The thermostat

• The water container

• The power cord

• The metal coil

How does the design with a plate at the bottom of some kettles differ from others?

• It consumes less electricity

• It heats water faster

• It is easier to clean

• It uses a different heating principle

Why might some kettles have a plate at the bottom?

• To increase the kettle's capacity

• To reduce manufacturing costs

• To provide a cleaner design

• To enhance the heating efficiency

What is the main purpose of a thermostat in modern electric kettles?

• To automatically switch off the kettle

• To reduce energy consumption

• To increase the boiling speed

• To maintain a constant temperature