Electrical Energy and Generators Concepts

What are the three main processes involved in providing electrical energy to consumers?

• Production, Transfer, Usage

• Generation, Transmission, Distribution

• Creation, Movement, Consumption

• Powering, Wiring, Supplying

What is the main source of energy used by a geothermal power plant to generate electricity?

• Running water

• Heat from within the Earth

• Sunlight

• Burning fossil fuels

What is the primary function of a generator in electricity production?

• To store electrical energy.

• To convert mechanical energy into electrical energy.

• To increase the voltage of electricity.

• To distribute electricity to homes.

For electric current to be induced in a generator, what must happen between the magnetic field and the conductor?

• Both must remain at rest.

• The magnetic field must be constant.

• Either the magnet or the conductor must be moving.

• They must be heated to a high temperature.

What scientific principle explains how generators produce electric current?

• Ohm's Law

• Coulomb's Law

• Electromagnetic Induction

• Kirchhoff's Law

Why is the voltage of electricity increased by a step-up transformer after generation at a power plant?

• To make it safer for household use.

• To reduce energy loss during long-distance transmission.

• To prepare it for storage in batteries.

• To convert it from AC to DC current.

What happens to the voltage of electricity at substations and pole transformers before it reaches individual homes?

• It is increased to maximum levels.

• It is converted into heat energy.

• It is lowered to safe and usable levels.

• It is stored for later use.

What is the purpose of an electric meter (watthour meter) located at a home's service box?

• To increase the voltage of electricity.

• To convert electricity from AC to DC.

• To measure the amount of electricity consumed.

• To generate electricity for the home.

What is the correct sequence of electricity flow from generation to consumption?

• Power plant -> Transmission lines -> Distribution lines -> Houses

• Power plant -> Distribution lines -> Transmission lines -> Houses

• Houses -> Distribution lines -> Transmission lines -> Power plant

• Transmission lines -> Power plant -> Distribution lines -> Houses

What is the primary function of a transformer in an electrical grid?

• To generate electricity from various sources.

• To convert mechanical energy into electrical energy.

• To increase or decrease voltage in the electrical system.

• To distribute electricity directly to individual homes.