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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 139 · 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 switch? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with M inside (d) two equal parallel lines
  2. 2.Which drawing is the symbol for a wire? (a) many long-short pairs (b) two equal parallel lines (c) a straight line (d) triangle against a bar
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) triangle, bar and arrows (c) a circle with V inside (d) a straight line
  5. 5.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) motor (c) voltmeter (d) junction
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) resistor (c) ammeter (d) bulb
  8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) resistor (d) diode
  9. 9.True or false: a straight line is the symbol for a bulb. (a) False (b) True
  10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) cell (c) capacitor (d) switch
  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, which part is drawn as two or more cell symbols? (a) cell (b) capacitor (c) junction (d) battery
  13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) ammeter (c) diode (d) resistor
  14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  15. 15.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  16. 16.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
  17. 17.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
  18. 18.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
  19. 19.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two or more cell symbols (c) a plain rectangle (d) two equal parallel lines
  20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  21. 21.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) ammeter (c) cell (d) capacitor
  23. 23.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
  24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  25. 25.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) resistor (c) LED (d) bulb
  27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) LED (c) diode (d) battery
  28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) capacitor (c) junction (d) ammeter
  29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) voltmeter (d) diode
  31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  32. 32.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with V inside (d) a dot where wires meet
  33. 33.True or false: a straight line is the symbol for a wire. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) LED (c) switch (d) wire
  35. 35.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
  36. 36.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
  37. 37.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  38. 38.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  40. 40.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with M inside (d) a circle with an X in it

Answer key

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

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