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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 46 · 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 circuit diagram, which part is drawn as a straight line? (a) wire (b) battery (c) junction (d) ammeter
  2. 2.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
  4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) capacitor (c) resistor (d) diode
  5. 5.True or false: a straight line is the symbol for a resistor. (a) True (b) False
  6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) resistor (c) switch (d) cell
  7. 7.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
  8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) cell (c) battery (d) LED
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) battery (d) wire
  10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) cell (c) voltmeter (d) switch
  11. 11.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) one tall, one short bar (d) a small empty box
  12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) junction (c) motor (d) battery
  13. 13.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) diode (c) bulb (d) voltmeter
  15. 15.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) many long-short pairs (c) one tall, one short bar (d) a long and a short line
  16. 16.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a circle with M inside (c) two equal parallel lines (d) a long and a short line
  17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) capacitor (d) diode
  18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  19. 19.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  20. 20.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
  21. 21.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  22. 22.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
  23. 23.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) bulb (c) ammeter (d) motor
  25. 25.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  26. 26.Which drawing is the symbol for a wire? (a) a circle with M inside (b) one tall, one short bar (c) a straight line (d) a small empty box
  27. 27.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
  28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  29. 29.Which drawing is the symbol for a cell? (a) a straight line (b) one tall, one short bar (c) a circle with V inside (d) a line lifted at a gap
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) LED (c) ammeter (d) diode
  31. 31.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a long and a short line (c) one tall, one short bar (d) a straight line
  32. 32.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a plain rectangle (c) one tall, one short bar (d) a circle with a cross
  33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) bulb (c) junction (d) switch
  34. 34.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two or more cell symbols (c) a circle with A inside (d) a circle with V inside
  35. 35.True or false: a straight line is the symbol for an LED. (a) True (b) False
  36. 36.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
  37. 37.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with A inside (c) a dot where wires meet (d) a straight line
  38. 38.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
  39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  40. 40.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True

Answer key

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

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