Radio Waves

• What is the frequency range of radio waves?

  300,000 Hz to 3000 million Hz
• What are radio waves primarily used for?

  To carry radio, TV, mobile phone signals
• How can radio waves be used in computing?

  To connect computers to other devices wirelessly
• What is a potential hazard of radio waves?

  They can penetrate bodies and heat internal parts
• What produces radio waves in electrical circuits?

  Oscillators
• What happens when radio waves are absorbed?

  They may create alternating currents of the same frequency
• • When absorbed may create alternating current
  • Same frequency as radio waves
  • Can induce oscillations