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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 819 · 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 small empty box? (a) ammeter (b) battery (c) LED (d) resistor
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
  3. 3.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
  4. 4.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  5. 5.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) LED (c) battery (d) diode
  7. 7.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
  8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) voltmeter (d) capacitor
  9. 9.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) a circle with an X in it (d) a long and a short line
  10. 10.Which drawing is the symbol for an LED? (a) a small empty box (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with A inside
  11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) voltmeter (c) wire (d) LED
  12. 12.True or false: a straight line is the symbol for a motor. (a) False (b) True
  13. 13.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) wire (d) junction
  15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) ammeter (c) resistor (d) cell
  16. 16.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  18. 18.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
  19. 19.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  20. 20.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) junction (d) resistor
  22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) resistor (c) battery (d) switch
  23. 23.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  24. 24.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) one tall, one short bar (d) a dot where wires meet
  25. 25.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
  26. 26.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a circle with V inside (c) many long-short pairs (d) a circle with M inside
  27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) capacitor (c) voltmeter (d) battery
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) junction (c) motor (d) bulb
  29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) capacitor (c) voltmeter (d) diode
  30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) motor (d) voltmeter
  31. 31.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle, bar and arrows (c) a plain rectangle (d) a long and a short line
  32. 32.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
  33. 33.Which drawing is the symbol for a diode? (a) many long-short pairs (b) triangle against a bar (c) one tall, one short bar (d) a small empty box
  34. 34.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
  35. 35.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with a cross (c) many long-short pairs (d) triangle against a bar
  36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  37. 37.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) a line lifted at a gap (d) triangle against a bar
  38. 38.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
  39. 39.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
  40. 40.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False

Answer key

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

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