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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 729 · 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, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) resistor (d) battery
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) junction (c) capacitor (d) ammeter
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
  4. 4.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a long and a short line (c) a circle with V inside (d) a circle with M inside
  5. 5.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
  6. 6.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) many long-short pairs (c) two equal parallel lines (d) a circle with M inside
  7. 7.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) two equal parallel lines (c) a plain rectangle (d) a dot where wires meet
  8. 8.Which drawing is the symbol for a wire? (a) many long-short pairs (b) one tall, one short bar (c) a long and a short line (d) a straight line
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) bulb (c) battery (d) capacitor
  10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) voltmeter (c) junction (d) wire
  11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) motor (d) ammeter
  12. 12.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
  13. 13.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
  14. 14.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
  15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  16. 16.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) motor (d) switch
  18. 18.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
  19. 19.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with a cross (d) two or more cell symbols
  20. 20.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) wire (c) battery (d) resistor
  22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  23. 23.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a circle with M inside (c) a circle with a cross (d) a dot where wires meet
  24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  25. 25.Which drawing is the symbol for a diode? (a) a long and a short line (b) two equal parallel lines (c) a straight line (d) triangle against a bar
  26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) cell (d) bulb
  27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) bulb (d) capacitor
  28. 28.Which drawing is the symbol for a cell? (a) a small empty box (b) two or more cell symbols (c) two equal parallel lines (d) a long and a short line
  29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) junction (d) LED
  30. 30.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) voltmeter (c) motor (d) junction
  32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) diode (c) cell (d) bulb
  34. 34.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  35. 35.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  36. 36.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
  37. 37.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
  38. 38.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
  39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  40. 40.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True

Answer key

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

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