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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 803 · 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 plain rectangle? (a) cell (b) capacitor (c) voltmeter (d) resistor
  2. 2.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
  5. 5.Which drawing is the symbol for a wire? (a) a long and a short line (b) a circle with V inside (c) a straight line (d) two or more cell symbols
  6. 6.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
  7. 7.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with V inside (d) many long-short pairs
  8. 8.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) one tall, one short bar (c) a small empty box (d) triangle, bar and arrows
  9. 9.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  11. 11.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) voltmeter (c) resistor (d) battery
  13. 13.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) wire (d) switch
  15. 15.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) resistor (c) motor (d) diode
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) cell (c) bulb (d) battery
  18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  19. 19.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  20. 20.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) diode (c) bulb (d) resistor
  22. 22.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  23. 23.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a line lifted at a gap (c) one tall, one short bar (d) two or more cell symbols
  24. 24.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
  25. 25.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with A inside
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) battery (c) motor (d) resistor
  27. 27.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) two or more cell symbols (d) one tall, one short bar
  28. 28.Which drawing is the symbol for a battery? (a) a small empty box (b) many long-short pairs (c) a circle with a cross (d) a circle with an X in it
  29. 29.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) wire (d) capacitor
  31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) capacitor (c) wire (d) diode
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) resistor (d) junction
  33. 33.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) two equal parallel lines (c) a circle with V inside (d) a dot where wires meet
  34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) junction (d) motor
  35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) ammeter (c) diode (d) wire
  36. 36.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
  37. 37.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  38. 38.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
  39. 39.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) triangle against a bar (d) a small empty box
  40. 40.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True

Answer key

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

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