← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 108 · 40 questions
TalentJR

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
  2. 2.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) capacitor (c) cell (d) motor
  4. 4.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a long and a short line (d) a plain rectangle
  5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  6. 6.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
  7. 7.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) many long-short pairs (d) a straight line
  8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
  9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
  10. 10.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) diode (c) cell (d) switch
  11. 11.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) a circle with A inside (d) a line lifted at a gap
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) battery (d) switch
  13. 13.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
  14. 14.Which drawing is the symbol for a switch? (a) a long and a short line (b) a small empty box (c) many long-short pairs (d) a line lifted at a gap
  15. 15.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  16. 16.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with a cross (c) a circle with V inside (d) a plain rectangle
  17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) battery (c) resistor (d) wire
  19. 19.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
  20. 20.Which drawing is the symbol for a diode? (a) a plain rectangle (b) a circle with A inside (c) triangle against a bar (d) a circle with V inside
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) ammeter (c) motor (d) bulb
  22. 22.True or false: a straight line is the symbol for a wire. (a) True (b) False
  23. 23.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a long and a short line (c) a circle with A inside (d) triangle, bar and arrows
  24. 24.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) capacitor (c) resistor (d) battery
  26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  28. 28.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
  29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) voltmeter (c) capacitor (d) LED
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) motor (c) voltmeter (d) capacitor
  31. 31.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) motor (d) capacitor
  33. 33.Which drawing is the symbol for a cell? (a) a circle with A inside (b) one tall, one short bar (c) two or more cell symbols (d) many long-short pairs
  34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) battery (c) capacitor (d) ammeter
  35. 35.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
  36. 36.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
  37. 37.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) a line lifted at a gap (d) two equal parallel lines
  38. 38.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
  39. 39.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
  40. 40.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True

Answer key

  1. False
  2. False
  3. cell
  4. a straight line
  5. straight lines
  6. False
  7. two equal parallel lines
  8. quick and clear for all
  9. the longer line
  10. diode
  11. a circle with M inside
  12. voltmeter
  13. False
  14. a line lifted at a gap
  15. True
  16. a plain rectangle
  17. True
  18. resistor
  19. False
  20. triangle against a bar
  21. bulb
  22. True
  23. a circle with A inside
  24. False
  25. resistor
  26. True
  27. True
  28. False
  29. ammeter
  30. motor
  31. False
  32. junction
  33. one tall, one short bar
  34. capacitor
  35. False
  36. False
  37. a small empty box
  38. False
  39. False
  40. False

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids