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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 640 · 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) neither line (b) the shorter line (c) both lines (d) the longer line
  2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) bulb (d) junction
  3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) motor (c) wire (d) battery
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) cell (d) bulb
  5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
  6. 6.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a circle with V inside (c) triangle against a bar (d) two equal parallel lines
  7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) voltmeter (c) battery (d) capacitor
  9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a plain rectangle (c) many long-short pairs (d) triangle, bar and arrows
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) voltmeter (c) ammeter (d) cell
  11. 11.Which drawing is the symbol for a cell? (a) a small empty box (b) a long and a short line (c) a circle with V inside (d) a line lifted at a gap
  12. 12.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
  13. 13.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
  14. 14.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  15. 15.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
  16. 16.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) a long and a short line (d) triangle, bar and arrows
  17. 17.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
  18. 18.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  19. 19.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) switch (c) junction (d) voltmeter
  21. 21.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) capacitor (c) switch (d) ammeter
  23. 23.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) resistor (d) diode
  25. 25.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
  26. 26.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  27. 27.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
  28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) diode (c) bulb (d) resistor
  29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) wire (c) cell (d) bulb
  30. 30.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a small empty box (c) two equal parallel lines (d) a circle with an X in it
  31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) cell (c) junction (d) switch
  32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) LED (d) voltmeter
  33. 33.Which drawing is the symbol for an LED? (a) many long-short pairs (b) one tall, one short bar (c) a straight line (d) triangle, bar and arrows
  34. 34.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  35. 35.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a straight line (c) a circle with A inside (d) a circle with M inside
  36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) battery (c) ammeter (d) LED
  37. 37.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) voltmeter (c) cell (d) battery
  39. 39.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  40. 40.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True

Answer key

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

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