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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 820 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) cell (c) LED (d) bulb
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
  4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) ammeter (c) diode (d) junction
  5. 5.Which drawing is the symbol for a wire? (a) a long and a short line (b) two or more cell symbols (c) a small empty box (d) a straight line
  6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) capacitor (c) cell (d) battery
  7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) ammeter (c) wire (d) LED
  8. 8.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
  9. 9.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) triangle against a bar (c) a long and a short line (d) a circle with an X in it
  10. 10.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) motor (c) voltmeter (d) LED
  12. 12.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
  13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  14. 14.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  17. 17.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
  18. 18.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
  19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) battery (c) capacitor (d) LED
  20. 20.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a straight line (c) two equal parallel lines (d) a plain rectangle
  21. 21.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
  22. 22.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
  23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  24. 24.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a dot where wires meet (c) a line lifted at a gap (d) a long and a short line
  25. 25.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a dot where wires meet (c) triangle, bar and arrows (d) many long-short pairs
  26. 26.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  27. 27.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with V inside (c) a circle with M inside (d) two or more cell symbols
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) capacitor (d) bulb
  29. 29.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) battery (d) voltmeter
  31. 31.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) two or more cell symbols (c) a line lifted at a gap (d) two equal parallel lines
  32. 32.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
  33. 33.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) diode (c) wire (d) cell
  35. 35.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) two equal parallel lines (d) a plain rectangle
  36. 36.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) capacitor (c) bulb (d) resistor
  38. 38.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
  39. 39.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with an X in it (c) many long-short pairs (d) a small empty box
  40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) junction (c) bulb (d) battery

Answer key

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

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