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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 666 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
  2. 2.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  3. 3.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  4. 4.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a long and a short line (c) a circle with A inside (d) triangle, bar and arrows
  5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) resistor (d) battery
  7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) switch (c) bulb (d) diode
  8. 8.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
  9. 9.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
  10. 10.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle against a bar (c) a circle with A inside (d) two equal parallel lines
  11. 11.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a dot where wires meet (c) a straight line (d) two or more cell symbols
  12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) wire (c) cell (d) ammeter
  13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) junction (c) capacitor (d) battery
  14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) resistor (c) switch (d) voltmeter
  15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) cell (d) capacitor
  17. 17.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) junction (c) cell (d) resistor
  19. 19.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a circle with V inside (c) triangle against a bar (d) triangle, bar and arrows
  20. 20.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) capacitor (c) ammeter (d) motor
  22. 22.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) many long-short pairs (c) a line lifted at a gap (d) two equal parallel lines
  23. 23.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
  24. 24.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
  25. 25.Which drawing is the symbol for a junction? (a) a straight line (b) a dot where wires meet (c) a circle with V inside (d) a line lifted at a gap
  26. 26.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
  27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) resistor (d) diode
  28. 28.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) ammeter (d) wire
  30. 30.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
  31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  32. 32.True or false: a straight line is the symbol for a cell. (a) False (b) True
  33. 33.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
  34. 34.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) motor (d) switch
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) ammeter (d) resistor
  37. 37.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  38. 38.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a plain rectangle (c) a line lifted at a gap (d) triangle, bar and arrows
  39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) voltmeter (d) diode

Answer key

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

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