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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 316 · 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) the longer line (b) neither line (c) the shorter line (d) both lines
  2. 2.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  3. 3.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a plain rectangle (c) many long-short pairs (d) triangle, bar and arrows
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
  5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) bulb (c) cell (d) junction
  6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) diode (d) junction
  7. 7.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) many long-short pairs (c) one tall, one short bar (d) a line lifted at a gap
  8. 8.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) one tall, one short bar (d) a circle with a cross
  9. 9.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
  10. 10.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with an X in it (c) one tall, one short bar (d) triangle, bar and arrows
  11. 11.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) two or more cell symbols (c) a circle with a cross (d) triangle against a bar
  12. 12.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
  13. 13.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  14. 14.True or false: a straight line is the symbol for a wire. (a) True (b) False
  15. 15.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
  16. 16.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
  17. 17.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
  18. 18.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) ammeter (c) switch (d) capacitor
  20. 20.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with A inside (d) a circle with V inside
  21. 21.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) switch (d) ammeter
  23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) cell (c) diode (d) battery
  24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) diode (c) LED (d) cell
  25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) switch (d) voltmeter
  26. 26.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) triangle against a bar (c) a circle with V inside (d) a long and a short line
  27. 27.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) bulb (d) motor
  29. 29.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
  30. 30.True or false: a straight line is the symbol for a cell. (a) True (b) False
  31. 31.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
  32. 32.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) two or more cell symbols (d) two equal parallel lines
  33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) diode (c) voltmeter (d) bulb
  35. 35.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) LED (c) capacitor (d) bulb
  38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) wire (c) junction (d) LED
  39. 39.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  40. 40.True or false: a straight line is the symbol for a junction. (a) True (b) False

Answer key

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

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