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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 449 · 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.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) a straight line (d) a plain rectangle
  2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) LED (c) junction (d) battery
  3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) cell (d) bulb
  4. 4.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with M inside (d) many long-short pairs
  5. 5.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) a circle with A inside (d) a circle with M inside
  6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) cell (d) ammeter
  7. 7.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
  8. 8.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) switch (c) wire (d) junction
  10. 10.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
  11. 11.True or false: a straight line is the symbol for a resistor. (a) True (b) False
  12. 12.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
  13. 13.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
  14. 14.Which drawing is the symbol for an LED? (a) a small empty box (b) a circle with V inside (c) triangle, bar and arrows (d) two equal parallel lines
  15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) switch (d) bulb
  16. 16.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
  17. 17.True or false: a straight line is the symbol for a wire. (a) False (b) True
  18. 18.True or false: triangle, bar and arrows is the symbol for a motor. (a) False (b) True
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) motor (d) LED
  20. 20.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
  21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  22. 22.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a circle with a cross (c) one tall, one short bar (d) a circle with A inside
  23. 23.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
  24. 24.Which drawing is the symbol for a cell? (a) a long and a short line (b) a plain rectangle (c) a straight line (d) a circle with V inside
  25. 25.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  26. 26.✏️ 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
  27. 27.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
  28. 28.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) voltmeter (c) LED (d) cell
  30. 30.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
  31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  32. 32.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
  33. 33.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
  34. 34.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
  35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  37. 37.True or false: a straight line is the symbol for a junction. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) battery (c) diode (d) capacitor
  39. 39.Which drawing is the symbol for a diode? (a) a long and a short line (b) a dot where wires meet (c) triangle against a bar (d) a circle with an X in it
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) battery (c) bulb (d) diode

Answer key

  1. a circle with V inside
  2. battery
  3. capacitor
  4. a circle with M inside
  5. a line lifted at a gap
  6. switch
  7. False
  8. True
  9. junction
  10. False
  11. False
  12. False
  13. False
  14. triangle, bar and arrows
  15. ammeter
  16. False
  17. True
  18. False
  19. voltmeter
  20. the longer line
  21. straight lines
  22. a circle with A inside
  23. False
  24. a long and a short line
  25. True
  26. quick and clear for all
  27. False
  28. True
  29. cell
  30. False
  31. True
  32. False
  33. False
  34. False
  35. True
  36. True
  37. False
  38. diode
  39. triangle against a bar
  40. bulb

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