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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 951 · 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 long and a short line? (a) ammeter (b) capacitor (c) resistor (d) cell
  2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) motor (c) bulb (d) LED
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) LED (c) diode (d) ammeter
  5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) bulb (d) voltmeter
  6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) ammeter (d) switch
  7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
  8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) cell (c) bulb (d) ammeter
  9. 9.True or false: a straight line is the symbol for a wire. (a) False (b) True
  10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  11. 11.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  12. 12.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with A inside (c) a circle with V inside (d) a dot where wires meet
  13. 13.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  14. 14.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) triangle against a bar (d) a straight line
  15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
  16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) ammeter (c) battery (d) capacitor
  18. 18.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) triangle, bar and arrows (d) a circle with A inside
  19. 19.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
  20. 20.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  21. 21.Which drawing is the symbol for a battery? (a) triangle against a bar (b) two or more cell symbols (c) a long and a short line (d) a line lifted at a gap
  22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) cell (c) battery (d) wire
  23. 23.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
  24. 24.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
  25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  26. 26.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
  27. 27.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  28. 28.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  29. 29.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  30. 30.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
  31. 31.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) two or more cell symbols (c) a small empty box (d) a circle with an X in it
  32. 32.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle against a bar (c) two equal parallel lines (d) a long and a short line
  33. 33.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) cell (c) junction (d) battery
  35. 35.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) two equal parallel lines (d) a circle with M inside
  36. 36.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) many long-short pairs (c) triangle, bar and arrows (d) two equal parallel lines
  37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) resistor (c) voltmeter (d) battery
  38. 38.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with M inside (d) a circle with A inside
  39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) junction (c) cell (d) battery
  40. 40.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False

Answer key

  1. cell
  2. LED
  3. quick and clear for all
  4. ammeter
  5. resistor
  6. wire
  7. the longer line
  8. bulb
  9. True
  10. True
  11. True
  12. a circle with V inside
  13. True
  14. two equal parallel lines
  15. straight lines
  16. True
  17. capacitor
  18. a straight line
  19. False
  20. True
  21. two or more cell symbols
  22. battery
  23. False
  24. False
  25. True
  26. False
  27. False
  28. True
  29. True
  30. False
  31. a small empty box
  32. a circle with a cross
  33. False
  34. junction
  35. triangle against a bar
  36. triangle, bar and arrows
  37. battery
  38. a circle with A inside
  39. diode
  40. False

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