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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 474 · 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) the shorter line (d) both lines
  2. 2.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
  3. 3.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with V inside (d) a circle with a cross
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
  5. 5.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (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) False (b) True
  7. 7.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a long and a short line (c) a small empty box (d) many long-short pairs
  8. 8.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) resistor (c) ammeter (d) cell
  10. 10.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) switch (d) voltmeter
  12. 12.Which drawing is the symbol for a resistor? (a) a long and a short line (b) two equal parallel lines (c) a plain rectangle (d) one tall, one short bar
  13. 13.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
  14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) battery (c) voltmeter (d) cell
  15. 15.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with a cross (d) a plain rectangle
  16. 16.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a straight line (c) two equal parallel lines (d) a circle with an X in it
  17. 17.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) two equal parallel lines (c) two or more cell symbols (d) a plain rectangle
  18. 18.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
  19. 19.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
  20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) capacitor (c) junction (d) battery
  21. 21.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) a circle with M inside (d) many long-short pairs
  22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) battery (c) cell (d) ammeter
  23. 23.True or false: triangle, bar and arrows is the symbol for a diode. (a) False (b) True
  24. 24.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) motor (d) diode
  26. 26.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) voltmeter (c) switch (d) diode
  28. 28.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  29. 29.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  31. 31.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with V inside (c) triangle against a bar (d) two equal parallel lines
  32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) voltmeter (d) battery
  33. 33.Which drawing is the symbol for a cell? (a) a plain rectangle (b) one tall, one short bar (c) a circle with an X in it (d) many long-short pairs
  34. 34.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
  35. 35.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
  36. 36.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) ammeter (c) battery (d) cell
  38. 38.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) voltmeter (c) wire (d) switch
  40. 40.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True

Answer key

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

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