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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 709 · 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) both lines (b) the longer line (c) neither line (d) the shorter line
  2. 2.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  3. 3.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  4. 4.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) a plain rectangle (d) triangle, bar and arrows
  5. 5.Which drawing is the symbol for a switch? (a) many long-short pairs (b) triangle, bar and arrows (c) a line lifted at a gap (d) a long and a short line
  6. 6.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
  7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) capacitor (c) battery (d) wire
  8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) ammeter (c) battery (d) diode
  9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
  10. 10.✏️ 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
  11. 11.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) diode (c) switch (d) voltmeter
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) wire (c) bulb (d) battery
  14. 14.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) triangle, bar and arrows (d) a long and a short line
  15. 15.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with M inside (c) triangle, bar and arrows (d) many long-short pairs
  16. 16.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with A inside
  17. 17.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  18. 18.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) switch (c) resistor (d) cell
  20. 20.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) triangle against a bar (c) a circle with an X in it (d) triangle, bar and arrows
  21. 21.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
  22. 22.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
  23. 23.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
  24. 24.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a dot where wires meet (c) two or more cell symbols (d) one tall, one short bar
  25. 25.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with an X in it (c) a dot where wires meet (d) two or more cell symbols
  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 battery? (a) one tall, one short bar (b) a plain rectangle (c) a circle with V inside (d) many long-short pairs
  28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) resistor (d) LED
  29. 29.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
  30. 30.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
  31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) switch (d) bulb
  32. 32.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a long and a short line (c) many long-short pairs (d) a straight line
  33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) switch (c) resistor (d) capacitor
  34. 34.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
  35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) LED (c) motor (d) ammeter
  37. 37.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
  38. 38.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  39. 39.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
  40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True

Answer key

  1. the longer line
  2. True
  3. True
  4. a circle with M inside
  5. a line lifted at a gap
  6. False
  7. wire
  8. diode
  9. straight lines
  10. quick and clear for all
  11. True
  12. switch
  13. bulb
  14. a dot where wires meet
  15. triangle, bar and arrows
  16. a circle with A inside
  17. True
  18. True
  19. cell
  20. a circle with an X in it
  21. False
  22. False
  23. False
  24. two equal parallel lines
  25. two or more cell symbols
  26. True
  27. many long-short pairs
  28. junction
  29. False
  30. False
  31. capacitor
  32. a straight line
  33. resistor
  34. False
  35. True
  36. motor
  37. False
  38. False
  39. False
  40. True

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