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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 764 · 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: a long and a short line is the symbol for a motor. (a) True (b) False
  2. 2.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with V inside (c) triangle against a bar (d) two or more cell symbols
  3. 3.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a long and a short line (c) a plain rectangle (d) a straight line
  4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) cell (d) junction
  5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) resistor (d) LED
  6. 6.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
  7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  8. 8.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
  9. 9.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  11. 11.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  12. 12.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with a cross
  13. 13.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
  14. 14.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) resistor (c) voltmeter (d) wire
  16. 16.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
  17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) LED (c) bulb (d) wire
  19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) resistor (c) capacitor (d) wire
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) wire (d) switch
  21. 21.Which drawing is the symbol for a cell? (a) a circle with A inside (b) triangle against a bar (c) a long and a short line (d) many long-short pairs
  22. 22.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) one tall, one short bar (d) a circle with an X in it
  23. 23.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
  24. 24.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  25. 25.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) bulb (d) cell
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) switch (c) LED (d) voltmeter
  28. 28.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  29. 29.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) two equal parallel lines (c) one tall, one short bar (d) many long-short pairs
  30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) wire (c) cell (d) capacitor
  31. 31.Which drawing is the symbol for an LED? (a) a plain rectangle (b) two equal parallel lines (c) a long and a short line (d) triangle, bar and arrows
  32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) motor (c) switch (d) resistor
  33. 33.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
  34. 34.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with an X in it (c) triangle against a bar (d) a long and a short line
  35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) wire (c) voltmeter (d) cell
  36. 36.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
  37. 37.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) bulb (c) resistor (d) LED
  39. 39.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  40. 40.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True

Answer key

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

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