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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 100 · 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 triangle against a bar? (a) voltmeter (b) diode (c) wire (d) battery
  2. 2.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
  3. 3.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
  4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) wire (c) cell (d) voltmeter
  5. 5.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a plain rectangle (d) a circle with a cross
  6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) resistor (c) motor (d) voltmeter
  7. 7.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  8. 8.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
  9. 9.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with an X in it (d) a dot where wires meet
  10. 10.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  11. 11.Which drawing is the symbol for a switch? (a) a long and a short line (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with A inside
  12. 12.Which drawing is the symbol for a diode? (a) a straight line (b) triangle, bar and arrows (c) triangle against a bar (d) one tall, one short bar
  13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) capacitor (d) motor
  14. 14.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with V inside (d) a straight line
  15. 15.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) bulb (c) voltmeter (d) capacitor
  17. 17.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
  18. 18.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
  19. 19.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
  20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) voltmeter (c) LED (d) wire
  21. 21.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
  22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
  23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) cell (c) battery (d) bulb
  25. 25.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) battery (c) bulb (d) cell
  27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) switch (c) cell (d) resistor
  28. 28.Which drawing is the symbol for a cell? (a) a plain rectangle (b) triangle, bar and arrows (c) a long and a short line (d) a line lifted at a gap
  29. 29.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  30. 30.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  31. 31.Which drawing is the symbol for a resistor? (a) a long and a short line (b) two or more cell symbols (c) a plain rectangle (d) a straight line
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) switch (c) capacitor (d) motor
  33. 33.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with A inside (c) a long and a short line (d) triangle against a bar
  34. 34.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
  35. 35.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  36. 36.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) triangle, bar and arrows (c) many long-short pairs (d) two equal parallel lines
  37. 37.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
  38. 38.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
  39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  40. 40.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False

Answer key

  1. diode
  2. False
  3. False
  4. cell
  5. a circle with V inside
  6. resistor
  7. True
  8. False
  9. a dot where wires meet
  10. True
  11. a line lifted at a gap
  12. triangle against a bar
  13. switch
  14. triangle, bar and arrows
  15. False
  16. capacitor
  17. False
  18. the longer line
  19. False
  20. wire
  21. quick and clear for all
  22. straight lines
  23. True
  24. bulb
  25. False
  26. cell
  27. resistor
  28. a long and a short line
  29. True
  30. True
  31. a plain rectangle
  32. motor
  33. a circle with a cross
  34. False
  35. True
  36. many long-short pairs
  37. False
  38. False
  39. True
  40. False

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