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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 332 · 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: a plain rectangle is the symbol for a junction. (a) True (b) False
  2. 2.True or false: a straight line is the symbol for a wire. (a) True (b) False
  3. 3.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
  4. 4.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) triangle, bar and arrows (c) a line lifted at a gap (d) many long-short pairs
  5. 5.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  6. 6.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a circle with V inside (c) one tall, one short bar (d) a straight line
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
  8. 8.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a small empty box (c) a circle with V inside (d) a dot where wires meet
  9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) resistor (c) junction (d) capacitor
  10. 10.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  11. 11.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
  12. 12.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
  13. 13.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
  14. 14.Which drawing is the symbol for a battery? (a) a long and a short line (b) many long-short pairs (c) a plain rectangle (d) triangle against a bar
  15. 15.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) two equal parallel lines (c) a circle with a cross (d) a line lifted at a gap
  16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) voltmeter (d) capacitor
  17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  18. 18.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with V inside (c) a long and a short line (d) two or more cell symbols
  19. 19.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) wire (c) switch (d) voltmeter
  21. 21.Which drawing is the symbol for a resistor? (a) a straight line (b) a plain rectangle (c) a long and a short line (d) one tall, one short bar
  22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) battery (c) junction (d) LED
  23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) capacitor (c) battery (d) switch
  24. 24.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle against a bar (c) a line lifted at a gap (d) triangle, bar and arrows
  25. 25.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) two or more cell symbols (c) a long and a short line (d) a small empty box
  26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  27. 27.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
  28. 28.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  29. 29.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  30. 30.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) LED (d) motor
  31. 31.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
  32. 32.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
  33. 33.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
  34. 34.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) wire (c) battery (d) ammeter
  36. 36.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) switch (c) bulb (d) resistor
  38. 38.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with A inside (c) a long and a short line (d) a circle with M inside
  39. 39.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) wire (c) LED (d) battery

Answer key

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

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