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Electronics Worksheet: Circuit Symbols

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

Answer key

  1. battery
  2. LED
  3. False
  4. True
  5. True
  6. True
  7. False
  8. False
  9. quick and clear for all
  10. True
  11. a small empty box
  12. ammeter
  13. a circle with an X in it
  14. a long and a short line
  15. straight lines
  16. the longer line
  17. a straight line
  18. True
  19. a line lifted at a gap
  20. False
  21. bulb
  22. False
  23. switch
  24. False
  25. resistor
  26. a plain rectangle
  27. False
  28. False
  29. a circle with a cross
  30. False
  31. True
  32. triangle against a bar
  33. junction
  34. False
  35. False
  36. battery
  37. True
  38. True
  39. wire
  40. one tall, one short bar

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