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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 144 · 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.

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

Answer key

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

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