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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 238 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
  2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) voltmeter (c) diode (d) switch
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
  4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
  5. 5.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  6. 6.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
  7. 7.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) diode (d) wire
  9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) wire (d) capacitor
  10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) bulb (c) capacitor (d) cell
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) motor (d) resistor
  12. 12.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with an X in it (c) a line lifted at a gap (d) a plain rectangle
  13. 13.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a long and a short line (d) a plain rectangle
  14. 14.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
  15. 15.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
  16. 16.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a circle with M inside (c) a straight line (d) a circle with A inside
  17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) capacitor (c) wire (d) motor
  18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) bulb (d) capacitor
  19. 19.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) one tall, one short bar (c) two equal parallel lines (d) a dot where wires meet
  20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) cell (c) capacitor (d) ammeter
  21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) switch (c) LED (d) cell
  22. 22.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
  23. 23.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  24. 24.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True
  25. 25.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
  26. 26.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a dot where wires meet (c) a long and a short line (d) two equal parallel lines
  27. 27.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
  28. 28.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
  29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) junction (c) diode (d) wire
  31. 31.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle, bar and arrows (c) two or more cell symbols (d) one tall, one short bar
  32. 32.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  34. 34.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with V inside (c) two or more cell symbols (d) two equal parallel lines
  35. 35.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
  36. 36.Which drawing is the symbol for a resistor? (a) a straight line (b) a long and a short line (c) triangle, bar and arrows (d) a small empty box
  37. 37.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) triangle against a bar (d) many long-short pairs
  38. 38.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  40. 40.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True

Answer key

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

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