History of Electricity
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Questions and Answers

What is meant by energy efficiency?

  • Reducing the level of service while maintaining the same amount of energy input
  • Maintaining the level of service with an increased amount of energy input
  • Achieving a higher level of service with the same amount of energy input (correct)
  • Eliminating the need for energy input altogether

    • What is the relationship between energy efficiency and energy intensity?

  • Energy efficiency is directly proportional to energy intensity
  • Energy efficiency is independent of energy intensity
  • Energy efficiency is inversely proportional to energy intensity (correct)
  • Energy efficiency is a multiple of energy intensity

    • What is necessary for a meaningful interpretation of energy intensity?

  • A high level of energy input
  • An appropriate level of aggregation (correct)
  • A low level of energy input
  • A high level of energy efficiency

    • What is the result of improving energy efficiency in a process or equipment?

    <p>A decrease in energy intensity</p> Signup and view all the answers

    Why is it necessary to isolate and account for other factors when measuring energy intensity?

    <p>To ensure that the measured changes in energy intensity are accurate and meaningful</p> Signup and view all the answers

    What is the main reason for the decoupling of energy demand from economic growth?

    <p>Structural changes in economies leading to reduced energy intensity</p> Signup and view all the answers

    What is the result of technological improvements and behavioral changes in the energy sector?

    <p>Significant improvement in energy efficiency</p> Signup and view all the answers

    What is the trend that has the potential to not only flatten the curve of primary energy demand but also change the global story of growth and energy?

    <p>Growing use of renewable energy sources</p> Signup and view all the answers

    What is the expected outcome of the decoupling of energy demand from economic growth on various industries?

    <p>Major implications and transformations</p> Signup and view all the answers

    What is the main driver of the decline in energy intensity of GDP?

    <p>Structural changes in economies</p> Signup and view all the answers

    What is the result of the electrification trend in the energy sector?

    <p>More efficient way of meeting energy needs</p> Signup and view all the answers

    What is believed to be the first concept of electricity discovered?

    <p>The concept of electricity by ancient Greeks</p> Signup and view all the answers

    Who is credited with developing the correct concept of electricity?

    <p>Benjamin Franklin</p> Signup and view all the answers

    What was discovered by Hans Christian Ørsted in 1820?

    <p>That magnets can produce electricity</p> Signup and view all the answers

    What was invented by Alessandro Volta?

    <p>The first electric battery</p> Signup and view all the answers

    What was a significant discovery made in the early 18th century?

    <p>The discovery of electrolysis</p> Signup and view all the answers

    Who made significant contributions to the science of electricity after the discovery of electromagnetic induction?

    <p>Michael Faraday</p> Signup and view all the answers

    What led to the replacement of primitive agriculture with industry as the basis of social economy?

    <p>Mechanization</p> Signup and view all the answers

    What was a significant invention that contributed to the acceleration of production during the First Industrial Revolution?

    <p>Steam engine</p> Signup and view all the answers

    What was a major source of energy that emerged during the Second Industrial Revolution?

    <p>Electricity</p> Signup and view all the answers

    What was a significant development that occurred in the second half of the 20th century?

    <p>The emergence of nuclear energy</p> Signup and view all the answers

    What was a major consequence of the Second Industrial Revolution?

    <p>The emergence of new forms of energy</p> Signup and view all the answers

    What is considered the most important industrial revolution?

    <p>The Second Industrial Revolution</p> Signup and view all the answers

    What do energy analysts often use as a measure of energy intensity?

    <p>Energy consumption per unit of gross domestic product (GDP)</p> Signup and view all the answers

    What is a factor that can influence the choice of energy intensity measure?

    <p>Data availability</p> Signup and view all the answers

    What can be a reason for changes in energy intensity?

    <p>Any of the above</p> Signup and view all the answers

    What is a sector that energy analysts often break down energy consumption for?

    <p>All of the above</p> Signup and view all the answers

    What is a potential indicator of energy intensity?

    <p>Energy consumption per capita</p> Signup and view all the answers

    What is a factor that can influence energy intensity?

    <p>Capital investments</p> Signup and view all the answers

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