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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 207 · 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) neither line (c) the longer line (d) the shorter line
  2. 2.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a small empty box (c) a circle with an X in it (d) a long and a short line
  3. 3.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
  4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) bulb (c) capacitor (d) cell
  5. 5.Which drawing is the symbol for a wire? (a) a circle with a cross (b) two equal parallel lines (c) many long-short pairs (d) a straight line
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) ammeter (c) bulb (d) motor
  7. 7.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  8. 8.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) wire (c) bulb (d) resistor
  10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) diode (c) junction (d) battery
  11. 11.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
  12. 12.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
  13. 13.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) motor (c) wire (d) cell
  16. 16.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) bulb (d) motor
  18. 18.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle, bar and arrows (c) triangle against a bar (d) a line lifted at a gap
  19. 19.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  20. 20.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
  21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) battery (c) junction (d) motor
  22. 22.True or false: one tall, one short bar is the symbol for a junction. (a) False (b) True
  23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) diode (c) capacitor (d) junction
  24. 24.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a straight line (c) one tall, one short bar (d) a circle with V inside
  25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) cell (c) voltmeter (d) LED
  27. 27.True or false: a straight line is the symbol for a wire. (a) False (b) True
  28. 28.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
  29. 29.Which drawing is the symbol for a diode? (a) a plain rectangle (b) one tall, one short bar (c) triangle against a bar (d) two or more cell symbols
  30. 30.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) motor (c) bulb (d) ammeter
  32. 32.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  33. 33.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
  34. 34.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two or more cell symbols (c) many long-short pairs (d) a long and a short line
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) resistor (c) motor (d) battery
  36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) bulb (c) diode (d) battery
  37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) diode (d) junction
  38. 38.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  40. 40.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False

Answer key

  1. the longer line
  2. a circle with an X in it
  3. False
  4. capacitor
  5. a straight line
  6. bulb
  7. quick and clear for all
  8. True
  9. bulb
  10. battery
  11. False
  12. False
  13. True
  14. straight lines
  15. wire
  16. False
  17. voltmeter
  18. many long-short pairs
  19. True
  20. False
  21. resistor
  22. False
  23. junction
  24. a circle with V inside
  25. True
  26. LED
  27. True
  28. False
  29. triangle against a bar
  30. False
  31. ammeter
  32. True
  33. False
  34. a long and a short line
  35. motor
  36. battery
  37. cell
  38. True
  39. True
  40. False

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