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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 454 · 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 circle with V inside? (a) voltmeter (b) bulb (c) ammeter (d) capacitor
  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 triangle against a bar? (a) motor (b) diode (c) cell (d) voltmeter
  4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
  5. 5.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
  6. 6.True or false: a straight line is the symbol for a wire. (a) True (b) False
  7. 7.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
  8. 8.True or false: a straight line is the symbol for a junction. (a) True (b) False
  9. 9.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a line lifted at a gap (d) one tall, one short bar
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) wire (c) motor (d) bulb
  11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) bulb (c) LED (d) junction
  12. 12.True or false: a straight line is the symbol for a capacitor. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) motor (c) voltmeter (d) cell
  14. 14.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) one tall, one short bar (c) a line lifted at a gap (d) a small empty box
  15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) resistor (d) battery
  16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  17. 17.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
  18. 18.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with A inside (c) a circle with M inside (d) a circle with an X in it
  19. 19.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) a plain rectangle (d) a small empty box
  20. 20.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
  21. 21.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  23. 23.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) ammeter (c) motor (d) resistor
  25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) LED (c) diode (d) cell
  26. 26.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) voltmeter (c) resistor (d) battery
  27. 27.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
  28. 28.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) diode (c) cell (d) motor
  30. 30.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  31. 31.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) bulb (c) cell (d) switch
  33. 33.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
  34. 34.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a line lifted at a gap (c) two or more cell symbols (d) a circle with a cross
  35. 35.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
  36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  37. 37.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with V inside
  38. 38.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  39. 39.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) two or more cell symbols (d) one tall, one short bar
  40. 40.True or false: a straight line is the symbol for a bulb. (a) True (b) False

Answer key

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

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