How Do Transformers Work?

What is the primary purpose of transformers as discussed in the video?

• To create electricity

• To step electric voltage up or down

• To store electricity

• To prevent power outages

Why is the voltage on transmission lines too high for home or business use?

• It provides more power to devices

• It can cause electrical damage or fires

• It charges batteries faster

• It can be converted to a lower voltage at substations

What materials are involved in the construction of a transformer?

• Copper and aluminum

• Iron core and wire

• Silicon and plastic

• Steel and rubber

What voltage is used to charge a typical cell phone?

What would happen if you tried to charge your cell phone with 120 volts of electricity?

• It would charge the phone faster

• The phone would work as normal

• It would break the phone

• The phone would automatically convert the voltage

Why do transformers step down voltage before it reaches homes and businesses?

• Transformers step down voltage to increase energy efficiency.
• Transformers step down voltage to ensure safety and compatibility for household and business use.
• Transformers step down voltage to reduce the cost of electricity.
• Transformers step down voltage to improve internet connectivity.

Which of the following is true about transformers in daily life?

• They are only used for charging cell phones

• They are not important for electricity distribution

• They only work with high-voltage equipment

• They are everywhere, from utility poles to phone chargers

How does a transformer change the voltage from high to low? Fill in the blank:

As the electricity flows through the high-voltage coil, it creates a __________ that induces a lower voltage in the other coil.