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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 435 · 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, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
  4. 4.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  5. 5.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
  6. 6.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) two or more cell symbols (c) a small empty box (d) a long and a short line
  7. 7.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle against a bar (c) one tall, one short bar (d) two or more cell symbols
  8. 8.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) battery (c) cell (d) switch
  10. 10.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) one tall, one short bar (c) many long-short pairs (d) a small empty box
  11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) switch (d) battery
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) cell (c) bulb (d) motor
  13. 13.True or false: a small empty box is the symbol for a cell. (a) True (b) False
  14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) voltmeter (d) junction
  15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) voltmeter (c) bulb (d) cell
  16. 16.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) triangle, bar and arrows (c) a line lifted at a gap (d) a circle with a cross
  17. 17.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a circle with an X in it (c) a circle with M inside (d) a straight line
  18. 18.Which drawing is the symbol for a voltmeter? (a) a straight line (b) one tall, one short bar (c) a small empty box (d) a circle with V inside
  19. 19.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  20. 20.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
  21. 21.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) resistor (d) voltmeter
  23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) LED (c) voltmeter (d) bulb
  25. 25.Which drawing is the symbol for a battery? (a) a small empty box (b) two or more cell symbols (c) triangle against a bar (d) a circle with an X in it
  26. 26.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
  27. 27.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with V inside (c) a dot where wires meet (d) many long-short pairs
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) cell (c) ammeter (d) voltmeter
  29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) switch (d) voltmeter
  30. 30.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  31. 31.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
  32. 32.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) one tall, one short bar (c) two or more cell symbols (d) a plain rectangle
  33. 33.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
  34. 34.True or false: a straight line is the symbol for a wire. (a) False (b) True
  35. 35.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  36. 36.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
  37. 37.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
  38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  39. 39.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
  40. 40.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True

Answer key

  1. straight lines
  2. quick and clear for all
  3. the longer line
  4. True
  5. False
  6. a small empty box
  7. triangle against a bar
  8. True
  9. battery
  10. many long-short pairs
  11. capacitor
  12. bulb
  13. False
  14. resistor
  15. cell
  16. a line lifted at a gap
  17. a straight line
  18. a circle with V inside
  19. True
  20. False
  21. False
  22. motor
  23. True
  24. voltmeter
  25. two or more cell symbols
  26. False
  27. a dot where wires meet
  28. ammeter
  29. cell
  30. True
  31. False
  32. a plain rectangle
  33. False
  34. True
  35. False
  36. False
  37. a circle with a cross
  38. True
  39. False
  40. False

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