Electricity and Electronics

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Across
  1. 2. A ________ generator is a circuit that continually switches on and off, like a flashing light.
  2. 6. __________ is used when a low-power primary control circuit is used to control a high-power circuit.
  3. 7. ___________ circuits are tiny circuits etched into silicon chips.
  4. 8. ________ only allows current to flow in one direction.
  5. 9. A ____________ is an automatic switch.
  6. 10. __________ is used in electricity and electronics for measuring component values and troubleshooting.
  7. 11. A __________ allows electricity to flow but not as freely as in metals.
  8. 13. The most common source of power in low voltage is a _________.
  9. 14. In a _______ circuit, the current is the same at any point in the circuit because there is only one path.
  10. 15. The base of a transistor is usually connected to a _______. If it allows enough current to flow, the transistor switches on.
  11. 16. _________-sensing circuits are useful in switching lamps on automatically in the dark.
Down
  1. 1. ________ panels convert energy from light into electricity.
  2. 2. The sensitivity of the temperature-sensing circuit can be changed by adding a _____________.
  3. 3. ___________ stores electricity, like rechargeable batteries.
  4. 4. An electrical ________ is a material that allows electricity to flow through easily.
  5. 5. ___________-sensing circuits are useful in switching electric kettles off automatically.
  6. 10. _____________ converts electrical energy to kinetic (motion) energy.
  7. 12. ___________ restricts the flow of current.
  8. 13. ____________ converts electrical energy to sound energy.
  9. 15. A simple __________ has two contacts which are used to make or break a circuit.