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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 801 · 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.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) a straight line (d) triangle against a bar
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
  3. 3.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with a cross (c) triangle against a bar (d) a circle with M inside
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
  6. 6.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  7. 7.Which drawing is the symbol for a switch? (a) a long and a short line (b) a circle with V inside (c) a line lifted at a gap (d) one tall, one short bar
  8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) capacitor (c) ammeter (d) cell
  9. 9.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a circle with A inside (c) a plain rectangle (d) many long-short pairs
  10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  11. 11.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  12. 12.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) bulb (d) diode
  14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) ammeter (d) wire
  15. 15.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
  16. 16.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  17. 17.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with M inside (c) triangle against a bar (d) one tall, one short bar
  18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) resistor (c) diode (d) cell
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) switch (c) capacitor (d) LED
  20. 20.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) LED (c) bulb (d) motor
  22. 22.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
  23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) LED (c) battery (d) voltmeter
  24. 24.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
  25. 25.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) ammeter (c) junction (d) cell
  27. 27.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with a cross (c) a plain rectangle (d) two or more cell symbols
  28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) diode (d) bulb
  29. 29.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) many long-short pairs (d) a straight line
  30. 30.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) ammeter (c) bulb (d) switch
  32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) switch (c) wire (d) diode
  33. 33.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
  34. 34.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
  35. 35.True or false: a straight line is the symbol for an LED. (a) True (b) False
  36. 36.Which drawing is the symbol for a cell? (a) a small empty box (b) a plain rectangle (c) a long and a short line (d) two or more cell symbols
  37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) motor (c) cell (d) ammeter
  38. 38.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
  39. 39.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a circle with M inside (c) a straight line (d) two or more cell symbols
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) voltmeter (c) wire (d) resistor

Answer key

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

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