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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 264 · 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.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with a cross (c) a straight line (d) a plain rectangle
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) ammeter (c) wire (d) resistor
  4. 4.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
  5. 5.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) triangle against a bar (c) two equal parallel lines (d) a circle with A inside
  6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  7. 7.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  8. 8.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
  9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  10. 10.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle, bar and arrows (c) a small empty box (d) one tall, one short bar
  11. 11.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) a long and a short line (d) a plain rectangle
  12. 12.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) resistor (c) ammeter (d) diode
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) ammeter (d) resistor
  15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
  16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) cell (c) capacitor (d) junction
  17. 17.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
  18. 18.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) two or more cell symbols (d) a line lifted at a gap
  19. 19.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) a circle with a cross (d) a circle with V inside
  20. 20.Which drawing is the symbol for a motor? (a) a long and a short line (b) many long-short pairs (c) a circle with M inside (d) a plain rectangle
  21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) junction (d) cell
  22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) LED (d) bulb
  23. 23.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  24. 24.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  26. 26.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
  27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  28. 28.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
  29. 29.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) motor (c) switch (d) bulb
  31. 31.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with M inside (c) a straight line (d) triangle, bar and arrows
  32. 32.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a line lifted at a gap (c) a circle with V inside (d) a circle with M inside
  33. 33.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  34. 34.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
  35. 35.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) battery (c) LED (d) diode
  36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) wire (d) resistor
  37. 37.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
  38. 38.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) LED (c) bulb (d) junction
  40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) resistor (d) switch

Answer key

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

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