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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 307 · 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 circle with V inside is the symbol for a voltmeter. (a) False (b) True
  2. 2.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a straight line (c) a long and a short line (d) triangle, bar and arrows
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) cell (d) motor
  4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) LED (c) bulb (d) switch
  5. 5.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  6. 6.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a long and a short line (c) a dot where wires meet (d) a straight line
  7. 7.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a long and a short line (c) a line lifted at a gap (d) two equal parallel lines
  8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) voltmeter (c) junction (d) cell
  9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) cell (c) bulb (d) diode
  10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) junction (c) capacitor (d) wire
  11. 11.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
  12. 12.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
  13. 13.True or false: a straight line is the symbol for a wire. (a) False (b) True
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) bulb (c) capacitor (d) cell
  15. 15.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) triangle, bar and arrows (c) a circle with A inside (d) a plain rectangle
  16. 16.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  18. 18.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) triangle, bar and arrows (d) a line lifted at a gap
  19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) motor (c) resistor (d) switch
  22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
  23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) resistor (c) capacitor (d) junction
  24. 24.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
  25. 25.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) switch (c) LED (d) resistor
  27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) wire (c) cell (d) diode
  28. 28.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) many long-short pairs (c) one tall, one short bar (d) a dot where wires meet
  29. 29.Which drawing is the symbol for a diode? (a) many long-short pairs (b) triangle against a bar (c) a circle with a cross (d) a long and a short line
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) LED (d) voltmeter
  31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) two equal parallel lines (d) two or more cell symbols
  33. 33.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) capacitor (c) resistor (d) LED
  35. 35.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  36. 36.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) ammeter (d) diode
  38. 38.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
  39. 39.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
  40. 40.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True

Answer key

  1. True
  2. triangle, bar and arrows
  3. LED
  4. switch
  5. True
  6. a straight line
  7. two equal parallel lines
  8. cell
  9. diode
  10. wire
  11. False
  12. quick and clear for all
  13. True
  14. bulb
  15. a circle with A inside
  16. True
  17. the longer line
  18. two or more cell symbols
  19. True
  20. True
  21. motor
  22. straight lines
  23. junction
  24. False
  25. False
  26. resistor
  27. cell
  28. a dot where wires meet
  29. triangle against a bar
  30. bulb
  31. True
  32. a circle with V inside
  33. True
  34. resistor
  35. True
  36. False
  37. battery
  38. False
  39. False
  40. False

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