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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 606 · 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 dot where wires meet is the symbol for a diode. (a) True (b) False
  2. 2.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) a circle with V inside (d) a straight line
  3. 3.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) diode (d) cell
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
  8. 8.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
  9. 9.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
  10. 10.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) LED (c) battery (d) switch
  12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) bulb (c) voltmeter (d) LED
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) motor (d) LED
  14. 14.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
  15. 15.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  16. 16.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with a cross (c) a plain rectangle (d) a circle with A inside
  17. 17.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) junction (c) ammeter (d) battery
  19. 19.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle against a bar (c) two or more cell symbols (d) a circle with M inside
  20. 20.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  21. 21.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) diode (c) resistor (d) bulb
  23. 23.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) resistor (c) junction (d) wire
  25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) junction (c) bulb (d) cell
  26. 26.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) many long-short pairs (c) a straight line (d) a long and a short line
  27. 27.Which drawing is the symbol for a motor? (a) a circle with a cross (b) two or more cell symbols (c) a circle with M inside (d) a small empty box
  28. 28.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
  29. 29.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  30. 30.Which drawing is the symbol for a junction? (a) many long-short pairs (b) triangle against a bar (c) a dot where wires meet (d) two or more cell symbols
  31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) junction (c) motor (d) battery
  32. 32.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
  33. 33.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
  34. 34.True or false: a straight line is the symbol for a wire. (a) True (b) False
  35. 35.True or false: a small empty box is the symbol for a junction. (a) True (b) False
  36. 36.Which drawing is the symbol for a bulb? (a) a straight line (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with a cross
  37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) wire (c) LED (d) junction
  38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) wire (c) cell (d) resistor
  39. 39.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) voltmeter (c) resistor (d) capacitor
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) ammeter (c) switch (d) diode

Answer key

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

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