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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 405 · 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, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) bulb (c) motor (d) voltmeter
  3. 3.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle against a bar (c) many long-short pairs (d) a long and a short line
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
  5. 5.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  6. 6.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  7. 7.True or false: a straight line is the symbol for a wire. (a) False (b) True
  8. 8.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a plain rectangle (d) a dot where wires meet
  9. 9.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
  10. 10.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) a plain rectangle (d) one tall, one short bar
  11. 11.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
  12. 12.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a straight line (c) two or more cell symbols (d) triangle, bar and arrows
  13. 13.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a plain rectangle (c) a long and a short line (d) a circle with an X in it
  14. 14.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  15. 15.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) diode (d) resistor
  17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) ammeter (c) wire (d) junction
  18. 18.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  19. 19.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
  20. 20.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) resistor (d) wire
  22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) resistor (c) ammeter (d) junction
  23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) junction (c) switch (d) battery
  24. 24.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
  25. 25.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
  26. 26.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
  27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) battery (c) cell (d) switch
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) resistor (c) ammeter (d) bulb
  29. 29.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) two equal parallel lines (c) two or more cell symbols (d) a long and a short line
  30. 30.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) motor (c) cell (d) LED
  32. 32.Which drawing is the symbol for a cell? (a) a circle with V inside (b) triangle against a bar (c) one tall, one short bar (d) two equal parallel lines
  33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) cell (c) wire (d) resistor
  34. 34.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
  35. 35.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
  36. 36.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) cell (c) ammeter (d) battery
  38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) battery (c) voltmeter (d) resistor
  39. 39.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
  40. 40.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False

Answer key

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

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