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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 219 · 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 diode? (a) a long and a short line (b) triangle against a bar (c) a circle with M inside (d) many long-short pairs
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
  3. 3.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) battery (c) switch (d) wire
  4. 4.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  5. 5.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  7. 7.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with M inside (d) a circle with a cross
  8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) motor (c) ammeter (d) bulb
  9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) voltmeter (c) switch (d) junction
  10. 10.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with V inside (c) a straight line (d) a small empty box
  11. 11.True or false: a straight line is the symbol for a junction. (a) True (b) False
  12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) wire (c) cell (d) diode
  13. 13.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  14. 14.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) LED (c) switch (d) cell
  16. 16.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) two equal parallel lines (c) a circle with A inside (d) triangle against a bar
  17. 17.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) bulb (c) motor (d) LED
  19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) LED (c) wire (d) motor
  20. 20.✏️ 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
  21. 21.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle, bar and arrows (c) many long-short pairs (d) a plain rectangle
  22. 22.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) junction (c) switch (d) bulb
  24. 24.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  25. 25.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with M inside (d) many long-short pairs
  26. 26.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  27. 27.Which drawing is the symbol for a motor? (a) a circle with a cross (b) two or more cell symbols (c) a circle with M inside (d) a circle with an X in it
  28. 28.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  29. 29.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a circle with A inside (d) triangle against a bar
  30. 30.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  31. 31.True or false: a straight line is the symbol for a wire. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) cell (c) battery (d) resistor
  33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) battery (c) bulb (d) LED
  34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) ammeter (d) junction
  35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  36. 36.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  37. 37.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  38. 38.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a circle with a cross (c) triangle, bar and arrows (d) a plain rectangle
  39. 39.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
  40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True

Answer key

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

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