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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 629 · 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) voltmeter (b) battery (c) diode (d) bulb
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
  5. 5.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) cell (d) switch
  6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  7. 7.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a dot where wires meet (c) a circle with an X in it (d) a circle with A inside
  8. 8.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two equal parallel lines (c) many long-short pairs (d) a long and a short line
  9. 9.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
  10. 10.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with a cross (c) a circle with A inside (d) a plain rectangle
  11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) switch (c) cell (d) capacitor
  12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) capacitor (c) ammeter (d) cell
  13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) diode (c) switch (d) voltmeter
  14. 14.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) diode (c) resistor (d) wire
  16. 16.True or false: a straight line is the symbol for a wire. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) bulb (c) battery (d) cell
  18. 18.Which drawing is the symbol for a switch? (a) a circle with A inside (b) triangle against a bar (c) one tall, one short bar (d) a line lifted at a gap
  19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) switch (d) diode
  21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) battery (c) resistor (d) wire
  22. 22.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) voltmeter (d) capacitor
  24. 24.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a small empty box (c) a circle with a cross (d) a long and a short line
  25. 25.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) a circle with a cross (d) a circle with A inside
  26. 26.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
  27. 27.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
  28. 28.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
  29. 29.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
  30. 30.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) LED (c) voltmeter (d) cell
  32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  33. 33.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) battery (d) switch
  35. 35.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a small empty box (c) triangle against a bar (d) a circle with V inside
  36. 36.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) triangle against a bar (c) a long and a short line (d) two equal parallel lines
  37. 37.True or false: a small empty box is the symbol for a diode. (a) False (b) True
  38. 38.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  39. 39.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
  40. 40.True or false: a straight line is the symbol for a junction. (a) False (b) True

Answer key

  1. bulb
  2. quick and clear for all
  3. the longer line
  4. straight lines
  5. capacitor
  6. True
  7. a circle with an X in it
  8. a long and a short line
  9. False
  10. a circle with A inside
  11. cell
  12. cell
  13. switch
  14. True
  15. diode
  16. True
  17. battery
  18. a line lifted at a gap
  19. True
  20. bulb
  21. wire
  22. False
  23. battery
  24. a circle with a cross
  25. a circle with M inside
  26. False
  27. False
  28. False
  29. False
  30. True
  31. LED
  32. True
  33. False
  34. motor
  35. a small empty box
  36. two equal parallel lines
  37. False
  38. True
  39. False
  40. False

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