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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 913 · 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: many long-short pairs is the symbol for a cell. (a) True (b) False
  2. 2.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with V inside (c) one tall, one short bar (d) a straight line
  3. 3.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) a straight line (d) many long-short pairs
  4. 4.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
  5. 5.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a long and a short line (c) a line lifted at a gap (d) triangle, bar and arrows
  6. 6.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
  7. 7.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
  8. 8.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
  9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
  11. 11.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
  12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  13. 13.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) switch (d) bulb
  15. 15.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) two equal parallel lines (c) a circle with V inside (d) a dot where wires meet
  16. 16.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with a cross (d) a long and a short line
  17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) diode (c) capacitor (d) LED
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) bulb (c) diode (d) switch
  19. 19.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
  20. 20.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
  21. 21.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
  22. 22.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) switch (c) bulb (d) ammeter
  24. 24.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) ammeter (c) cell (d) battery
  26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) diode (d) battery
  27. 27.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a circle with A inside (c) two equal parallel lines (d) a plain rectangle
  28. 28.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  29. 29.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a line lifted at a gap (c) two or more cell symbols (d) a circle with an X in it
  30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  31. 31.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with V inside (c) a dot where wires meet (d) a circle with M inside
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) diode (c) bulb (d) ammeter
  33. 33.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
  34. 34.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
  35. 35.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with V inside (c) many long-short pairs (d) a line lifted at a gap
  36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) wire (d) motor
  37. 37.Which drawing is the symbol for a junction? (a) a straight line (b) a plain rectangle (c) many long-short pairs (d) a dot where wires meet
  38. 38.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  39. 39.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with V inside (d) many long-short pairs
  40. 40.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False

Answer key

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

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