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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 133 · 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.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with M inside (c) a long and a short line (d) a plain rectangle
  2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) motor (c) wire (d) diode
  3. 3.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  5. 5.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two equal parallel lines (c) triangle, bar and arrows (d) many long-short pairs
  6. 6.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  7. 7.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
  8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  9. 9.Which drawing is the symbol for a bulb? (a) a small empty box (b) a long and a short line (c) a circle with a cross (d) two or more cell symbols
  10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) junction (c) battery (d) diode
  11. 11.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) triangle against a bar (c) a circle with V inside (d) a line lifted at a gap
  12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) junction (c) switch (d) LED
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) junction (c) wire (d) bulb
  14. 14.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
  15. 15.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
  16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  17. 17.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) switch (d) wire
  19. 19.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
  20. 20.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) diode (c) wire (d) resistor
  22. 22.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle against a bar (c) two equal parallel lines (d) a circle with M inside
  23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) motor (d) battery
  24. 24.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  25. 25.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a circle with M inside (c) a straight line (d) a dot where wires meet
  26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  27. 27.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
  28. 28.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) bulb (c) switch (d) diode
  30. 30.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a small empty box (c) one tall, one short bar (d) triangle, bar and arrows
  31. 31.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
  32. 32.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  33. 33.True or false: a straight line is the symbol for a junction. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) LED (c) motor (d) capacitor
  35. 35.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with V inside (c) a small empty box (d) a circle with A inside
  36. 36.True or false: a straight line is the symbol for a wire. (a) False (b) True
  37. 37.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with A inside (c) a circle with an X in it (d) a long and a short line
  38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  39. 39.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with a cross (d) a circle with M inside
  40. 40.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False

Answer key

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

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