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Electronics Worksheet: Circuit Symbols

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

Answer key

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

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