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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 489 · 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) the shorter line (b) both lines (c) neither line (d) the longer line
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
  3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) motor (c) junction (d) capacitor
  4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) capacitor (c) battery (d) junction
  5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) switch (d) voltmeter
  6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) bulb (c) wire (d) capacitor
  7. 7.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a straight line (c) a dot where wires meet (d) a circle with A inside
  8. 8.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a dot where wires meet (c) one tall, one short bar (d) a circle with a cross
  9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) switch (d) battery
  10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) LED (d) battery
  12. 12.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) many long-short pairs (c) two equal parallel lines (d) one tall, one short bar
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) wire (d) ammeter
  14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) LED (d) ammeter
  16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  17. 17.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) motor (c) wire (d) bulb
  19. 19.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a long and a short line (c) two equal parallel lines (d) a line lifted at a gap
  20. 20.Which drawing is the symbol for a resistor? (a) a long and a short line (b) triangle against a bar (c) a circle with M inside (d) a small empty box
  21. 21.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a dot where wires meet (c) triangle against a bar (d) a plain rectangle
  22. 22.True or false: a straight line is the symbol for a wire. (a) True (b) False
  23. 23.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) switch (c) cell (d) LED
  25. 25.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  26. 26.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) switch (c) capacitor (d) ammeter
  28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) voltmeter (d) switch
  29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) battery (c) LED (d) resistor
  30. 30.True or false: a straight line is the symbol for an LED. (a) False (b) True
  31. 31.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with a cross
  32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) motor (c) battery (d) capacitor
  33. 33.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
  34. 34.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  35. 35.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a small empty box (c) a line lifted at a gap (d) a straight line
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) diode (c) LED (d) switch
  37. 37.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
  38. 38.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
  39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  40. 40.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False

Answer key

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

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