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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 816 · 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) bulb (b) capacitor (c) wire (d) battery
  2. 2.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) cell (d) switch
  4. 4.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle, bar and arrows (c) a dot where wires meet (d) triangle against a bar
  5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) resistor (d) diode
  7. 7.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
  8. 8.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
  9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  10. 10.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) ammeter (c) capacitor (d) battery
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) battery (c) motor (d) ammeter
  13. 13.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  14. 14.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with A inside (d) one tall, one short bar
  15. 15.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) resistor (c) battery (d) cell
  17. 17.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) cell (c) battery (d) motor
  19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) one tall, one short bar (d) a circle with M inside
  20. 20.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) ammeter (c) motor (d) bulb
  22. 22.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
  23. 23.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a straight line (c) many long-short pairs (d) a plain rectangle
  24. 24.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
  25. 25.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  26. 26.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  27. 27.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a circle with V inside (d) two or more cell symbols
  28. 28.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
  29. 29.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a line lifted at a gap (c) a circle with an X in it (d) a circle with M inside
  30. 30.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
  31. 31.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
  32. 32.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
  33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) motor (c) wire (d) battery
  34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) battery (d) capacitor
  35. 35.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  36. 36.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) wire (d) voltmeter
  38. 38.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
  39. 39.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) a circle with A inside (d) a circle with V inside
  40. 40.True or false: a straight line is the symbol for a wire. (a) False (b) True

Answer key

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

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