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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 876 · 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.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  3. 3.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) diode (c) cell (d) resistor
  5. 5.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) triangle against a bar (d) two or more cell symbols
  6. 6.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
  7. 7.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a circle with M inside (c) a line lifted at a gap (d) triangle, bar and arrows
  8. 8.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a dot where wires meet (c) triangle against a bar (d) a circle with V inside
  9. 9.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with A inside
  10. 10.Which drawing is the symbol for a motor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with A inside (d) a circle with M inside
  11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) motor (c) voltmeter (d) battery
  12. 12.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) ammeter (c) capacitor (d) battery
  14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) bulb (c) diode (d) cell
  15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  16. 16.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
  17. 17.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
  18. 18.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  19. 19.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
  20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) bulb (c) junction (d) LED
  22. 22.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  23. 23.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) wire (c) motor (d) ammeter
  25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) ammeter (c) cell (d) motor
  27. 27.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
  28. 28.Which drawing is the symbol for a switch? (a) many long-short pairs (b) triangle against a bar (c) a plain rectangle (d) a line lifted at a gap
  29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) switch (c) battery (d) bulb
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) diode (d) motor
  31. 31.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
  32. 32.Which drawing is the symbol for a battery? (a) a small empty box (b) a dot where wires meet (c) a line lifted at a gap (d) two or more cell symbols
  33. 33.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
  34. 34.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  35. 35.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) triangle, bar and arrows (c) a circle with a cross (d) a long and a short line
  36. 36.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
  37. 37.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) LED (c) wire (d) resistor
  39. 39.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
  40. 40.True or false: two equal parallel lines is the symbol for an ammeter. (a) False (b) True

Answer key

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

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