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Electronics Worksheet: Circuit Symbols

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

Answer key

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

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