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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 81 · 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 circle with M inside is the symbol for a motor. (a) False (b) True
  2. 2.Which drawing is the symbol for a diode? (a) a straight line (b) a long and a short line (c) one tall, one short bar (d) triangle against a bar
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  5. 5.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with a cross (c) one tall, one short bar (d) a circle with M inside
  6. 6.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  7. 7.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  8. 8.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) battery (c) wire (d) bulb
  10. 10.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  11. 11.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
  12. 12.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
  13. 13.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
  14. 14.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) ammeter (c) cell (d) switch
  16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) battery (c) motor (d) voltmeter
  17. 17.True or false: a straight line is the symbol for a wire. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) junction (c) wire (d) battery
  19. 19.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
  20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) ammeter (d) wire
  22. 22.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
  23. 23.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
  24. 24.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
  25. 25.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) wire (c) diode (d) battery
  26. 26.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
  27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  28. 28.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with A inside (d) many long-short pairs
  29. 29.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a dot where wires meet (c) a plain rectangle (d) many long-short pairs
  30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) voltmeter (c) cell (d) resistor
  31. 31.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  32. 32.✏️ 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
  33. 33.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) cell (c) ammeter (d) diode
  35. 35.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) two equal parallel lines (c) many long-short pairs (d) a small empty box
  36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) capacitor (c) switch (d) junction
  37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) cell (c) ammeter (d) capacitor
  38. 38.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) triangle against a bar (c) two or more cell symbols (d) two equal parallel lines
  39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) LED (c) voltmeter (d) diode

Answer key

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

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