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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 94 · 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.

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

Answer key

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

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