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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 118 · 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: a plain rectangle is the symbol for an LED. (a) False (b) True
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) cell (c) LED (d) diode
  4. 4.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
  5. 5.Which drawing is the symbol for an LED? (a) a plain rectangle (b) two or more cell symbols (c) a circle with a cross (d) triangle, bar and arrows
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
  7. 7.Which drawing is the symbol for a diode? (a) a small empty box (b) two or more cell symbols (c) a straight line (d) triangle against a bar
  8. 8.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) LED (c) resistor (d) cell
  10. 10.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle against a bar (c) a line lifted at a gap (d) a circle with a cross
  11. 11.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
  12. 12.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
  13. 13.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) capacitor (d) bulb
  15. 15.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) motor (d) junction
  17. 17.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a dot where wires meet (c) two or more cell symbols (d) a line lifted at a gap
  18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) junction (c) battery (d) motor
  19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) junction (c) cell (d) ammeter
  20. 20.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) one tall, one short bar (c) two or more cell symbols (d) a dot where wires meet
  21. 21.Which drawing is the symbol for a voltmeter? (a) a straight line (b) triangle against a bar (c) a circle with V inside (d) two equal parallel lines
  22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) capacitor (c) junction (d) wire
  23. 23.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) LED (c) voltmeter (d) motor
  25. 25.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
  26. 26.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
  27. 27.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with A inside (c) two or more cell symbols (d) one tall, one short bar
  28. 28.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
  29. 29.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) two equal parallel lines (d) triangle, bar and arrows
  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 V inside is the symbol for a switch. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) cell (c) capacitor (d) ammeter
  33. 33.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) battery (c) LED (d) bulb
  34. 34.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
  35. 35.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) triangle against a bar (c) a straight line (d) a circle with M inside
  36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) junction (c) cell (d) resistor
  38. 38.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
  39. 39.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
  40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True

Answer key

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

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