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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 858 · 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 a circle with a cross? (a) ammeter (b) battery (c) bulb (d) switch
  2. 2.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with a cross (c) a circle with V inside (d) two or more cell symbols
  3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) junction (c) switch (d) voltmeter
  4. 4.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) voltmeter (d) switch
  7. 7.True or false: a circle with an X in it is the symbol for an ammeter. (a) False (b) True
  8. 8.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  9. 9.Which drawing is the symbol for a battery? (a) a circle with A inside (b) triangle against a bar (c) many long-short pairs (d) two equal parallel lines
  10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
  11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) ammeter (c) switch (d) diode
  12. 12.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two equal parallel lines (c) a straight line (d) a circle with a cross
  13. 13.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  14. 14.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  15. 15.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) ammeter (c) wire (d) battery
  17. 17.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
  18. 18.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) battery (c) resistor (d) junction
  20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) LED (c) ammeter (d) cell
  21. 21.True or false: a dot where wires meet is the symbol for an LED. (a) False (b) True
  22. 22.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  23. 23.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
  24. 24.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a circle with V inside (c) a circle with A inside (d) a line lifted at a gap
  25. 25.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
  26. 26.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) cell (d) capacitor
  28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) wire (d) ammeter
  29. 29.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) triangle, bar and arrows (c) a long and a short line (d) a circle with V inside
  30. 30.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) two or more cell symbols (c) a long and a short line (d) many long-short pairs
  31. 31.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) junction (d) cell
  33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  34. 34.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  35. 35.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
  36. 36.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
  37. 37.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
  38. 38.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
  39. 39.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) capacitor (c) resistor (d) motor

Answer key

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

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