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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 181 · 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 circle with an X in it? (a) bulb (b) resistor (c) cell (d) junction
  2. 2.True or false: a dot where wires meet is the symbol for a resistor. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) junction (c) battery (d) switch
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) voltmeter (c) wire (d) junction
  6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) battery (c) diode (d) capacitor
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) cell (c) bulb (d) resistor
  9. 9.Which drawing is the symbol for a motor? (a) a straight line (b) many long-short pairs (c) two equal parallel lines (d) a circle with M inside
  10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) battery (d) junction
  11. 11.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
  12. 12.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) wire (c) capacitor (d) voltmeter
  14. 14.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
  15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) ammeter (c) diode (d) junction
  16. 16.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) a dot where wires meet (d) a long and a short line
  17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
  18. 18.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
  19. 19.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) two equal parallel lines (d) two or more cell symbols
  20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a small empty box (c) a long and a short line (d) triangle against a bar
  21. 21.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a small empty box (c) two or more cell symbols (d) a straight line
  22. 22.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a small empty box (c) a circle with M inside (d) two or more cell symbols
  23. 23.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
  24. 24.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
  25. 25.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a circle with a cross (c) a plain rectangle (d) a circle with M inside
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) switch (d) LED
  27. 27.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with a cross
  28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) capacitor (c) switch (d) junction
  29. 29.True or false: a straight line is the symbol for a switch. (a) True (b) False
  30. 30.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  31. 31.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
  32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  33. 33.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) capacitor (c) bulb (d) wire
  35. 35.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  36. 36.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a small empty box (c) triangle against a bar (d) a dot where wires meet
  37. 37.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  38. 38.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  39. 39.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
  40. 40.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False

Answer key

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

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