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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 581 · 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.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) many long-short pairs (c) a straight line (d) a circle with a cross
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) battery (c) ammeter (d) wire
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
  4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) voltmeter (c) wire (d) junction
  5. 5.True or false: a small empty box is the symbol for a motor. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) junction (d) battery
  7. 7.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  8. 8.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  9. 9.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) one tall, one short bar (d) a circle with a cross
  10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) LED (c) capacitor (d) switch
  11. 11.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) switch (d) cell
  13. 13.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a circle with a cross (c) a straight line (d) a line lifted at a gap
  14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
  15. 15.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a straight line (d) a plain rectangle
  16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) motor (c) cell (d) ammeter
  17. 17.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) LED (c) junction (d) motor
  19. 19.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) a dot where wires meet (d) a circle with V inside
  20. 20.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  21. 21.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with an X in it (c) a circle with a cross (d) one tall, one short bar
  22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) diode (c) resistor (d) junction
  23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) battery (c) cell (d) LED
  24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
  25. 25.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  26. 26.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
  27. 27.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
  28. 28.True or false: a straight line is the symbol for a capacitor. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) LED (d) motor
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) switch (d) diode
  31. 31.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
  32. 32.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) voltmeter (d) bulb
  35. 35.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
  36. 36.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
  37. 37.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
  38. 38.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
  39. 39.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two or more cell symbols (c) one tall, one short bar (d) a circle with A inside
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) junction (c) bulb (d) resistor

Answer key

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

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