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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 136 · 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) False (b) True
  2. 2.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) a dot where wires meet (d) a circle with an X in it
  3. 3.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) bulb (d) wire
  6. 6.True or false: a small empty box is the symbol for a junction. (a) True (b) False
  7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
  8. 8.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle, bar and arrows (c) a straight line (d) a circle with an X in it
  9. 9.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
  10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) junction (d) bulb
  11. 11.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a long and a short line (c) a line lifted at a gap (d) triangle against a bar
  12. 12.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle against a bar (c) triangle, bar and arrows (d) a long and a short line
  13. 13.True or false: a straight line is the symbol for a battery. (a) False (b) True
  14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) motor (c) resistor (d) bulb
  15. 15.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a dot where wires meet (c) two equal parallel lines (d) a circle with an X in it
  16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) wire (c) ammeter (d) capacitor
  17. 17.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with M inside (c) many long-short pairs (d) a dot where wires meet
  18. 18.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
  19. 19.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
  20. 20.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with an X in it (c) a long and a short line (d) a circle with M inside
  21. 21.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two or more cell symbols (c) a circle with V inside (d) a long and a short line
  22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) junction (c) ammeter (d) diode
  23. 23.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
  24. 24.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
  25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) LED (c) motor (d) voltmeter
  26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) voltmeter (c) ammeter (d) junction
  27. 27.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) two equal parallel lines (d) a small empty box
  28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) battery (d) voltmeter
  29. 29.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
  30. 30.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) a straight line (d) a circle with M inside
  31. 31.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  32. 32.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
  33. 33.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  34. 34.Which drawing is the symbol for a voltmeter? (a) a straight line (b) two or more cell symbols (c) a circle with M inside (d) a circle with V inside
  35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) cell (c) voltmeter (d) LED
  37. 37.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  38. 38.True or false: a straight line 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 cell. (a) True (b) False
  40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

Answer key

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

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