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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 326 · 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) neither line (b) both lines (c) the longer line (d) the shorter line
  2. 2.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  3. 3.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
  5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) diode (d) LED
  6. 6.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) ammeter (c) cell (d) resistor
  8. 8.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) switch (c) motor (d) bulb
  10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) voltmeter (c) cell (d) capacitor
  11. 11.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a circle with a cross (c) a line lifted at a gap (d) two or more cell symbols
  12. 12.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
  13. 13.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
  14. 14.True or false: a straight line is the symbol for a capacitor. (a) False (b) True
  15. 15.True or false: a straight line is the symbol for a junction. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) LED (c) switch (d) bulb
  17. 17.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a line lifted at a gap (c) a small empty box (d) many long-short pairs
  18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) junction (c) resistor (d) wire
  19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
  20. 20.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  21. 21.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
  22. 22.Which drawing is the symbol for a battery? (a) a circle with A inside (b) two equal parallel lines (c) a circle with an X in it (d) two or more cell symbols
  23. 23.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) ammeter (c) LED (d) voltmeter
  25. 25.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) junction (c) battery (d) LED
  27. 27.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  28. 28.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
  29. 29.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
  30. 30.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) two equal parallel lines (c) a dot where wires meet (d) a long and a short line
  31. 31.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with A inside (c) a straight line (d) one tall, one short bar
  32. 32.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a straight line (c) a circle with A inside (d) many long-short pairs
  33. 33.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
  34. 34.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with a cross (d) a dot where wires meet
  35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  36. 36.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) bulb (c) voltmeter (d) junction
  38. 38.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) voltmeter (d) junction
  39. 39.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) cell (c) LED (d) battery
  40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False

Answer key

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

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