Discovering Radio Waves in Electronics History
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Questions and Answers

What was demonstrated by Guglielmo Marconi in 1895?

  • The invention of the Audion tube
  • The development of capacitors in electronic circuits
  • Wireless telegraphy (correct)
  • The use of vacuum tubes in electronic communication
  • Which type of components can amplify or change energy from one form to another?

  • Resistors
  • Inductors
  • Capacitors
  • Transistors (correct)
  • What did the discovery of radio waves by Marconi and the subsequent experiments prove?

  • Radio waves and light waves have the same velocity (correct)
  • Radio waves travel faster than light waves
  • Radio waves are not a form of electromagnetic radiation
  • Radio waves cannot travel through space
  • What is the main function of a resistor in a circuit?

    <p>To limit current flow or reduce voltage</p> Signup and view all the answers

    Which invention allowed for wireless communication across the Atlantic Ocean in 1901?

    <p>The Audion tube</p> Signup and view all the answers

    What category do diodes, transistors, and vacuum tubes fall under in electronic components?

    <p>Active Components</p> Signup and view all the answers

    When was the transistor invented?

    <p>1954 - 1959</p> Signup and view all the answers

    What was the significance of the invention of Integrated Circuits in electronics?

    <p>Revolutionized the field of electronics by miniaturizing electronic components</p> Signup and view all the answers

    What is the main function of an electronic circuit?

    <p>To control the flow of electricity or electric charge</p> Signup and view all the answers

    Which modern advancement in electronics led to the debut of the World Wide Web?

    <p>Invention of the microprocessor</p> Signup and view all the answers

    When did the IBM PC enter the market?

    <p>1981 - 1989</p> Signup and view all the answers

    Who is credited with beginning wireless transmission for radio communications?

    <p>Heinrich Hertz</p> Signup and view all the answers

    Who invented the iconoscope?

    <p>Vladimir Zworykin</p> Signup and view all the answers

    Which electronic component did Lee De Forest invent?

    <p>Triode vacuum tube</p> Signup and view all the answers

    When was the first radio broadcast using Frequency Modulation (FM)?

    <p>1940s</p> Signup and view all the answers

    What was the purpose of the Fleming valve?

    <p>Electronic amplification</p> Signup and view all the answers

    Which logic family uses Emitter-Coupled Logic (ECL)?

    <p>Emitter-Coupled Logic (ECL)</p> Signup and view all the answers

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