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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 550 · 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 against a bar? (a) junction (b) resistor (c) switch (d) diode
  2. 2.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with a cross (c) a long and a short line (d) a small empty box
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) cell (d) junction
  4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
  5. 5.Which drawing is the symbol for a motor? (a) a straight line (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with M inside
  6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) capacitor (c) ammeter (d) cell
  7. 7.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
  8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
  9. 9.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two or more cell symbols (c) a circle with V inside (d) a dot where wires meet
  10. 10.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  11. 11.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  12. 12.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
  13. 13.True or false: a small empty box is the symbol for a junction. (a) True (b) False
  14. 14.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a dot where wires meet (c) two or more cell symbols (d) a straight line
  15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) capacitor (c) battery (d) resistor
  16. 16.True or false: a small empty box is the symbol for a battery. (a) True (b) False
  17. 17.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a plain rectangle (c) a long and a short line (d) triangle against a bar
  18. 18.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
  19. 19.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
  20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  21. 21.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) triangle against a bar (d) a small empty box
  22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) diode (c) LED (d) resistor
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) cell (d) LED
  24. 24.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
  25. 25.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a circle with a cross (c) a dot where wires meet (d) two or more cell symbols
  26. 26.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
  27. 27.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  28. 28.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
  29. 29.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
  30. 30.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  31. 31.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
  32. 32.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) triangle against a bar (d) a line lifted at a gap
  33. 33.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
  34. 34.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
  35. 35.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
  36. 36.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with V inside (c) a circle with A inside (d) a plain rectangle
  37. 37.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) a small empty box (d) a plain rectangle
  38. 38.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with V inside (c) a line lifted at a gap (d) two or more cell symbols
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) battery (c) voltmeter (d) switch
  40. 40.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False

Answer key

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

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