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Electronics Worksheet: Circuit Symbols

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

Answer key

  1. quick and clear for all
  2. motor
  3. resistor
  4. resistor
  5. junction
  6. True
  7. straight lines
  8. True
  9. a circle with A inside
  10. False
  11. True
  12. battery
  13. many long-short pairs
  14. False
  15. LED
  16. cell
  17. voltmeter
  18. False
  19. triangle against a bar
  20. a plain rectangle
  21. the longer line
  22. capacitor
  23. False
  24. ammeter
  25. False
  26. a straight line
  27. True
  28. cell
  29. a small empty box
  30. one tall, one short bar
  31. False
  32. False
  33. False
  34. True
  35. False
  36. False
  37. a circle with a cross
  38. False
  39. False
  40. bulb

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