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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 607 · 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 battery? (a) triangle against a bar (b) many long-short pairs (c) a small empty box (d) two equal parallel lines
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
  3. 3.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
  4. 4.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) wire (c) voltmeter (d) cell
  6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) motor (c) switch (d) junction
  7. 7.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with A inside (c) a small empty box (d) two equal parallel lines
  8. 8.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
  9. 9.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  10. 10.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
  11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
  12. 12.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) triangle against a bar (d) a straight line
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) switch (c) ammeter (d) voltmeter
  14. 14.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) resistor (c) diode (d) battery
  16. 16.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a straight line (c) a circle with an X in it (d) a dot where wires meet
  17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) voltmeter (c) bulb (d) capacitor
  18. 18.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with a cross (c) two or more cell symbols (d) a straight line
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) diode (d) battery
  20. 20.Which drawing is the symbol for a switch? (a) a straight line (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with a cross
  21. 21.True or false: a small empty box is the symbol for a wire. (a) True (b) False
  22. 22.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) ammeter (c) diode (d) junction
  24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) wire (c) switch (d) battery
  25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) resistor (d) battery
  26. 26.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
  27. 27.True or false: a straight line is the symbol for a bulb. (a) False (b) True
  28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
  29. 29.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  30. 30.Which drawing is the symbol for a battery? (a) a circle with a cross (b) triangle, bar and arrows (c) a circle with V inside (d) two or more cell symbols
  31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) bulb (c) voltmeter (d) switch
  33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) resistor (c) switch (d) bulb
  35. 35.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  36. 36.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with M inside (c) a straight line (d) a circle with a cross
  37. 37.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  38. 38.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
  39. 39.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  40. 40.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False

Answer key

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

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