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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 589 · 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 diode? (a) a long and a short line (b) triangle against a bar (c) two or more cell symbols (d) a circle with a cross
  2. 2.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with A inside (c) a dot where wires meet (d) triangle against a bar
  3. 3.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with an X in it (c) a small empty box (d) a straight line
  4. 4.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with M inside (d) one tall, one short bar
  5. 5.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with a cross (d) one tall, one short bar
  6. 6.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
  7. 7.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
  8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) capacitor (c) junction (d) switch
  10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) ammeter (c) bulb (d) switch
  11. 11.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  12. 12.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) two or more cell symbols (d) a circle with a cross
  13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) ammeter (c) resistor (d) capacitor
  15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
  16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) voltmeter (c) junction (d) LED
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) battery (c) ammeter (d) capacitor
  18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) cell (c) switch (d) capacitor
  19. 19.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with A inside (c) a circle with an X in it (d) a straight line
  20. 20.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) triangle against a bar (c) a circle with A inside (d) a dot where wires meet
  21. 21.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) resistor (c) capacitor (d) motor
  23. 23.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) wire (c) LED (d) motor
  25. 25.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with a cross (d) a plain rectangle
  26. 26.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
  27. 27.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  28. 28.True or false: a straight line is the symbol for a cell. (a) True (b) False
  29. 29.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  30. 30.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  31. 31.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
  32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  33. 33.True or false: a straight line is the symbol for a wire. (a) True (b) False
  34. 34.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) cell (d) capacitor
  36. 36.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
  37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) diode (c) battery (d) voltmeter
  39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  40. 40.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False

Answer key

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

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