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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 93 · 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 battery? (a) two or more cell symbols (b) a small empty box (c) a plain rectangle (d) a straight line
  2. 2.True or false: a plain rectangle is the symbol for an ammeter. (a) False (b) True
  3. 3.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) a dot where wires meet (d) a small empty box
  4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) LED (d) ammeter
  5. 5.Which drawing is the symbol for a capacitor? (a) a straight line (b) triangle, bar and arrows (c) a dot where wires meet (d) two equal parallel lines
  6. 6.True or false: a straight line is the symbol for a wire. (a) True (b) False
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) ammeter (c) bulb (d) capacitor
  8. 8.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) bulb (d) diode
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) junction (c) capacitor (d) voltmeter
  11. 11.True or false: a circle with V inside is the symbol for a diode. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) motor (d) cell
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) cell (d) switch
  14. 14.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with V inside (c) a line lifted at a gap (d) a circle with M inside
  15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
  16. 16.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with A inside
  17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
  18. 18.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
  19. 19.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with M inside (c) a circle with an X in it (d) a circle with a cross
  20. 20.Which drawing is the symbol for a cell? (a) many long-short pairs (b) triangle, bar and arrows (c) a long and a short line (d) a circle with a cross
  21. 21.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) battery (c) capacitor (d) junction
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) wire (c) junction (d) bulb
  24. 24.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a line lifted at a gap (c) one tall, one short bar (d) triangle against a bar
  25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) switch (c) resistor (d) LED
  27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) ammeter (d) switch
  28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  29. 29.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  31. 31.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True
  32. 32.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
  33. 33.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) a line lifted at a gap (d) two equal parallel lines
  34. 34.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) junction (d) resistor
  36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  37. 37.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
  38. 38.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
  39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  40. 40.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False

Answer key

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

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