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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 825 · 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 a small empty box? (a) resistor (b) voltmeter (c) wire (d) bulb
  2. 2.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
  3. 3.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
  4. 4.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
  5. 5.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) diode (c) junction (d) battery
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
  8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) wire (c) ammeter (d) cell
  9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
  10. 10.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) many long-short pairs
  11. 11.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a long and a short line (c) triangle, bar and arrows (d) a plain rectangle
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) battery (c) bulb (d) ammeter
  13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) junction (c) battery (d) wire
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) wire (c) junction (d) bulb
  15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) wire (c) resistor (d) junction
  16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  17. 17.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
  18. 18.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  19. 19.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
  20. 20.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) diode (c) cell (d) bulb
  21. 21.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
  22. 22.✏️ 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
  23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) wire (c) junction (d) bulb
  24. 24.Which drawing is the symbol for a junction? (a) a small empty box (b) a circle with a cross (c) triangle, bar and arrows (d) a dot where wires meet
  25. 25.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  26. 26.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a circle with a cross (c) a line lifted at a gap (d) two equal parallel lines
  27. 27.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  28. 28.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
  29. 29.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
  30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) cell (c) battery (d) resistor
  31. 31.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with an X in it (c) a plain rectangle (d) a circle with M inside
  32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) bulb (d) ammeter
  33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  34. 34.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  35. 35.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  36. 36.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a circle with M inside (c) a line lifted at a gap (d) two or more cell symbols
  37. 37.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) ammeter (d) LED
  39. 39.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with V inside (c) two equal parallel lines (d) a circle with M inside
  40. 40.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False

Answer key

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

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