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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 62 · 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.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) cell (c) capacitor (d) motor
  2. 2.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a plain rectangle (c) a dot where wires meet (d) two equal parallel lines
  3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) wire (d) diode
  4. 4.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
  5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) capacitor (c) junction (d) voltmeter
  6. 6.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) a small empty box (d) one tall, one short bar
  7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) ammeter (c) switch (d) junction
  8. 8.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  9. 9.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  10. 10.True or false: a straight line is the symbol for a wire. (a) True (b) False
  11. 11.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  12. 12.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  13. 13.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) diode (d) switch
  15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
  17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) bulb (c) motor (d) battery
  18. 18.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) a circle with V inside (d) a dot where wires meet
  19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) battery (d) voltmeter
  20. 20.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with V inside (c) a long and a short line (d) a small empty box
  21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) junction (c) capacitor (d) motor
  22. 22.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
  23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) resistor (c) diode (d) ammeter
  24. 24.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
  25. 25.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  26. 26.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
  27. 27.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a line lifted at a gap (c) two or more cell symbols (d) a plain rectangle
  28. 28.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  29. 29.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  30. 30.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) a circle with a cross (d) a circle with A inside
  31. 31.True or false: triangle, bar and arrows is the symbol for a switch. (a) False (b) True
  32. 32.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
  33. 33.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a line lifted at a gap (c) a straight line (d) a long and a short line
  34. 34.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
  35. 35.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
  36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) switch (c) battery (d) motor
  37. 37.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
  38. 38.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with an X in it (c) one tall, one short bar (d) two equal parallel lines
  39. 39.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) triangle against a bar (c) two or more cell symbols (d) a plain rectangle
  40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) ammeter (c) LED (d) diode

Answer key

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

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