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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 671 · 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.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  2. 2.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a plain rectangle (c) a circle with M inside (d) a long and a short line
  3. 3.Which drawing is the symbol for a wire? (a) a straight line (b) a long and a short line (c) two or more cell symbols (d) two equal parallel lines
  4. 4.✏️ 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
  5. 5.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) battery (d) LED
  6. 6.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  8. 8.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with an X in it (c) two or more cell symbols (d) triangle, bar and arrows
  9. 9.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) wire (d) switch
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) LED (c) battery (d) motor
  12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) resistor (c) bulb (d) battery
  13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
  14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) LED (c) battery (d) capacitor
  15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) voltmeter (d) junction
  16. 16.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) two or more cell symbols (d) a dot where wires meet
  17. 17.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
  18. 18.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
  19. 19.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
  20. 20.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
  21. 21.Which drawing is the symbol for a junction? (a) a small empty box (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
  22. 22.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a dot where wires meet (c) a circle with an X in it (d) a circle with a cross
  23. 23.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  25. 25.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
  26. 26.Which drawing is the symbol for a resistor? (a) a small empty box (b) a dot where wires meet (c) a circle with V inside (d) two equal parallel lines
  27. 27.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
  28. 28.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
  29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) bulb (c) switch (d) resistor
  30. 30.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  31. 31.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle, bar and arrows (c) a dot where wires meet (d) a straight line
  32. 32.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
  33. 33.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
  34. 34.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  35. 35.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
  36. 36.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  37. 37.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  38. 38.True or false: a small empty box is the symbol for a diode. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) motor (c) cell (d) bulb
  40. 40.True or false: a long and a short line is the symbol for a junction. (a) True (b) False

Answer key

  1. False
  2. a plain rectangle
  3. a straight line
  4. quick and clear for all
  5. diode
  6. False
  7. straight lines
  8. a circle with V inside
  9. True
  10. cell
  11. bulb
  12. battery
  13. the longer line
  14. battery
  15. capacitor
  16. a circle with A inside
  17. False
  18. False
  19. False
  20. False
  21. a dot where wires meet
  22. a circle with M inside
  23. True
  24. True
  25. False
  26. a small empty box
  27. False
  28. False
  29. switch
  30. True
  31. a circle with a cross
  32. False
  33. False
  34. True
  35. False
  36. True
  37. True
  38. False
  39. motor
  40. False

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