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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 779 · 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 long and a short line is the symbol for a cell. (a) False (b) True
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
  3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) cell (d) bulb
  4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) switch (d) capacitor
  5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) resistor (d) motor
  6. 6.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
  7. 7.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a circle with a cross (c) a small empty box (d) two or more cell symbols
  8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) switch (c) bulb (d) ammeter
  9. 9.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) junction (d) battery
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) battery (c) bulb (d) resistor
  12. 12.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) one tall, one short bar (c) a plain rectangle (d) a circle with M inside
  13. 13.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
  14. 14.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
  15. 15.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) diode (c) battery (d) LED
  17. 17.True or false: a circle with an X in it is the symbol for a voltmeter. (a) False (b) True
  18. 18.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with a cross
  19. 19.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) LED (c) cell (d) switch
  21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) switch (c) cell (d) battery
  22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) wire (d) ammeter
  23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
  24. 24.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
  25. 25.True or false: a small empty box is the symbol for a wire. (a) False (b) True
  26. 26.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
  27. 27.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with an X in it (c) one tall, one short bar (d) a small empty box
  28. 28.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) triangle, bar and arrows (d) a circle with V inside
  29. 29.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) a plain rectangle (c) two equal parallel lines (d) a long and a short line
  30. 30.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a circle with V inside (c) a long and a short line (d) triangle, bar and arrows
  31. 31.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  32. 32.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two equal parallel lines (c) a small empty box (d) a straight line
  33. 33.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) a line lifted at a gap (d) two equal parallel lines
  34. 34.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
  35. 35.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  36. 36.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) one tall, one short bar (c) a circle with A inside (d) a small empty box
  37. 37.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
  39. 39.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
  40. 40.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True

Answer key

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

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