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Electronics Worksheet: Circuit Symbols

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

Answer key

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

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