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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 499 · 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 a small empty box? (a) cell (b) voltmeter (c) motor (d) resistor
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) battery (d) capacitor
  5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) voltmeter (c) LED (d) switch
  6. 6.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  7. 7.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) a plain rectangle (d) many long-short pairs
  8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) resistor (c) wire (d) bulb
  9. 9.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a circle with A inside (c) a circle with a cross (d) a dot where wires meet
  10. 10.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  12. 12.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with A inside (c) a circle with V inside (d) a circle with a cross
  13. 13.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a plain rectangle (c) triangle against a bar (d) a long and a short line
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) ammeter (d) junction
  15. 15.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
  16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
  17. 17.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  18. 18.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) one tall, one short bar (c) a line lifted at a gap (d) a straight line
  19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) bulb (d) resistor
  20. 20.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a circle with M inside (c) a line lifted at a gap (d) triangle, bar and arrows
  21. 21.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with A inside (d) a circle with an X in it
  22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  23. 23.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with a cross (c) a dot where wires meet (d) a straight line
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) switch (c) junction (d) bulb
  25. 25.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) switch (c) LED (d) diode
  27. 27.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
  28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) switch (c) cell (d) ammeter
  30. 30.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  31. 31.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) switch (c) resistor (d) ammeter
  32. 32.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
  33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) ammeter (c) cell (d) bulb
  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: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) diode (c) voltmeter (d) battery
  37. 37.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
  38. 38.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  40. 40.Which drawing is the symbol for a diode? (a) a straight line (b) a small empty box (c) a plain rectangle (d) triangle against a bar

Answer key

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

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