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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 341 · 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 circle with M inside is the symbol for a motor. (a) False (b) True
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
  3. 3.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a plain rectangle (c) one tall, one short bar (d) a circle with a cross
  4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) ammeter (c) motor (d) LED
  5. 5.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with a cross (c) one tall, one short bar (d) a small empty box
  6. 6.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) triangle, bar and arrows (d) a line lifted at a gap
  7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) switch (d) diode
  8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
  9. 9.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a long and a short line (c) triangle, bar and arrows (d) many long-short pairs
  10. 10.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) motor (c) resistor (d) bulb
  12. 12.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
  13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) capacitor (c) LED (d) bulb
  14. 14.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) many long-short pairs (c) a plain rectangle (d) two equal parallel lines
  15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) LED (c) cell (d) switch
  18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  19. 19.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) one tall, one short bar (c) a dot where wires meet (d) a line lifted at a gap
  20. 20.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) battery (c) junction (d) motor
  22. 22.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  23. 23.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  24. 24.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  25. 25.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) capacitor (c) LED (d) resistor
  27. 27.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
  28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) diode (c) resistor (d) voltmeter
  29. 29.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
  30. 30.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with M inside (c) triangle against a bar (d) a circle with V inside
  31. 31.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) voltmeter (c) ammeter (d) battery
  33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) junction (c) switch (d) wire
  34. 34.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
  35. 35.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
  36. 36.Which drawing is the symbol for a junction? (a) many long-short pairs (b) triangle, bar and arrows (c) a dot where wires meet (d) two or more cell symbols
  37. 37.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
  38. 38.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with V inside (d) two equal parallel lines
  39. 39.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) a circle with A inside (d) many long-short pairs
  40. 40.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True

Answer key

  1. True
  2. quick and clear for all
  3. a circle with a cross
  4. LED
  5. a small empty box
  6. triangle against a bar
  7. cell
  8. the longer line
  9. many long-short pairs
  10. False
  11. resistor
  12. False
  13. capacitor
  14. a plain rectangle
  15. True
  16. True
  17. switch
  18. True
  19. a line lifted at a gap
  20. False
  21. junction
  22. True
  23. True
  24. True
  25. False
  26. bulb
  27. False
  28. resistor
  29. False
  30. a long and a short line
  31. False
  32. ammeter
  33. wire
  34. straight lines
  35. False
  36. a dot where wires meet
  37. False
  38. a circle with V inside
  39. a circle with M inside
  40. False

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