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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 679 · 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, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  2. 2.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with an X in it (c) a long and a short line (d) a dot where wires meet
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  4. 4.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a small empty box (c) a circle with M inside (d) a circle with a cross
  5. 5.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) capacitor (c) motor (d) wire
  7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) capacitor (d) wire
  8. 8.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a circle with a cross (c) a long and a short line (d) a straight line
  9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) wire (d) LED
  11. 11.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) resistor (d) LED
  13. 13.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a straight line (c) one tall, one short bar (d) triangle, bar and arrows
  14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) diode (c) junction (d) battery
  15. 15.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) switch (c) capacitor (d) junction
  17. 17.True or false: a small empty box is the symbol for a motor. (a) False (b) True
  18. 18.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  19. 19.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
  20. 20.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a long and a short line (c) a circle with a cross (d) a straight line
  21. 21.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with V inside (c) a small empty box (d) a long and a short line
  22. 22.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a small empty box (c) a circle with M inside (d) triangle against a bar
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) wire (d) resistor
  24. 24.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  25. 25.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
  26. 26.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  27. 27.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) battery (c) voltmeter (d) cell
  29. 29.True or false: a small empty box is the symbol for an LED. (a) False (b) True
  30. 30.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
  31. 31.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
  32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  33. 33.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a plain rectangle (c) one tall, one short bar (d) a dot where wires meet
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) diode (c) resistor (d) bulb
  35. 35.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a line lifted at a gap (d) many long-short pairs
  36. 36.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with M inside (c) two equal parallel lines (d) a circle with a cross
  37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) ammeter (d) bulb
  38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) motor (c) ammeter (d) battery
  39. 39.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
  40. 40.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True

Answer key

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

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