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6. I reduce the current flow.

  • Diode
  • Resistor
  • Capacitor

7. I can produce various single note at any one time.

  • Buzzer
  • Loudspeaker
  • Bell

8. I am a process component.

  • 555 Timer
  • Solenoid
  • Thermistor

9. I can display numbers from 0-9

  • 7 Segment Display
  • LED
  • Bulb

10. I am a sustainable light source

  • Light Emitting Diode
  • Bulb
  • Solar Panel

11. I can reverse current flow in a circuit

  • SPST
  • DPDT
  • SPDT

12. I amplify current.

  • Loudspeaker
  • Op-Amp
  • 555 Timer

13. I am used to control the direction that current flows.

  • SPST Switch
  • Diode
  • Transistor

14. I dispaly text on a crystal display

  • LED
  • LCD
  • 7 Segment Display

15. I store current and dischagre it in pulses

  • Solar Panel
  • Capacitor
  • Resistor

16. I am commanly used to turn lights on and off permanently.

  • SPST
  • PTM
  • Reed switch

17. I reduce current flow at a fixed rate.

  • Resistor
  • Variable Resistor
  • Diode.

18. I detect the change in light level

  • Variable Resistor
  • LDR
  • Thermistor

19. I am a component that gives off light but will only allow the curent to flow in one direction through me.

  • LED
  • Bulb
  • LCD

20. I make things move.

  • Loudspeaker
  • Motor
  • Buzzer