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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 720 · 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.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
  3. 3.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  4. 4.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
  5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) resistor (c) switch (d) battery
  6. 6.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  7. 7.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a straight line (c) a dot where wires meet (d) a long and a short line
  8. 8.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) a circle with M inside (d) a line lifted at a gap
  9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) one tall, one short bar (c) two or more cell symbols (d) a dot where wires meet
  10. 10.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) capacitor (c) resistor (d) wire
  11. 11.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  12. 12.True or false: a straight line is the symbol for a wire. (a) False (b) True
  13. 13.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  14. 14.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) many long-short pairs (c) a long and a short line (d) a small empty box
  15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) battery (c) capacitor (d) ammeter
  16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) cell (c) bulb (d) wire
  17. 17.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  18. 18.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
  19. 19.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
  20. 20.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) diode (d) cell
  22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) diode (c) battery (d) capacitor
  23. 23.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) triangle, bar and arrows (c) a line lifted at a gap (d) many long-short pairs
  24. 24.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with V inside (c) a circle with A inside (d) a circle with an X in it
  25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) junction (c) diode (d) resistor
  26. 26.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
  27. 27.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  28. 28.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
  29. 29.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a small empty box (c) a straight line (d) a line lifted at a gap
  30. 30.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) switch (d) capacitor
  32. 32.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
  33. 33.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) one tall, one short bar (c) a circle with A inside (d) a circle with a cross
  34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  35. 35.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  36. 36.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) ammeter (c) switch (d) junction
  38. 38.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
  39. 39.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) resistor (d) bulb
  40. 40.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a line lifted at a gap (c) a small empty box (d) many long-short pairs

Answer key

  1. True
  2. straight lines
  3. True
  4. False
  5. battery
  6. True
  7. a dot where wires meet
  8. a long and a short line
  9. a circle with V inside
  10. LED
  11. True
  12. True
  13. quick and clear for all
  14. a small empty box
  15. ammeter
  16. wire
  17. the longer line
  18. False
  19. False
  20. False
  21. voltmeter
  22. battery
  23. many long-short pairs
  24. a circle with an X in it
  25. resistor
  26. False
  27. True
  28. False
  29. a line lifted at a gap
  30. False
  31. junction
  32. False
  33. a circle with a cross
  34. True
  35. True
  36. False
  37. capacitor
  38. False
  39. switch
  40. a circle with M inside

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