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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 923 · 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 shorter line (c) the longer line (d) neither line
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) diode (d) LED
  3. 3.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) a circle with M inside (d) a circle with A inside
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  6. 6.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
  7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) resistor (c) switch (d) bulb
  8. 8.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
  9. 9.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with V inside (c) many long-short pairs (d) a circle with A inside
  10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) switch (c) battery (d) cell
  11. 11.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  12. 12.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) a line lifted at a gap (d) two equal parallel lines
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) junction (c) motor (d) cell
  14. 14.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
  15. 15.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) switch (d) diode
  17. 17.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two equal parallel lines (c) triangle against a bar (d) two or more cell symbols
  18. 18.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
  19. 19.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  20. 20.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  21. 21.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
  22. 22.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  23. 23.True or false: a small empty box is the symbol for a switch. (a) False (b) True
  24. 24.Which drawing is the symbol for a junction? (a) a small empty box (b) one tall, one short bar (c) a dot where wires meet (d) a circle with an X in it
  25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) bulb (d) diode
  26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) LED (c) switch (d) cell
  27. 27.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) many long-short pairs (c) a small empty box (d) a circle with a cross
  28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) wire (c) cell (d) capacitor
  29. 29.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  30. 30.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
  31. 31.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
  32. 32.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
  33. 33.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  34. 34.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with A inside (c) a circle with an X in it (d) a circle with a cross
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) wire (c) bulb (d) junction
  36. 36.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a small empty box (c) a circle with M inside (d) triangle against a bar
  37. 37.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a plain rectangle (c) a line lifted at a gap (d) many long-short pairs
  38. 38.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) cell (d) motor
  39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) ammeter (c) capacitor (d) junction
  40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True

Answer key

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

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