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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 688 · 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.✏️ 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
  2. 2.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  3. 3.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) ammeter (c) LED (d) battery
  7. 7.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) a circle with V inside (d) a circle with a cross
  8. 8.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  9. 9.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  10. 10.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
  11. 11.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) battery (c) ammeter (d) bulb
  13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) battery (c) junction (d) ammeter
  14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) resistor (c) wire (d) cell
  15. 15.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
  16. 16.Which drawing is the symbol for a junction? (a) a straight line (b) a plain rectangle (c) a dot where wires meet (d) triangle, bar and arrows
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) LED (c) bulb (d) wire
  18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
  19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) wire (c) voltmeter (d) diode
  20. 20.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) motor (d) resistor
  22. 22.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  23. 23.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
  24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) ammeter (c) resistor (d) diode
  25. 25.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a small empty box (c) a circle with an X in it (d) a long and a short line
  26. 26.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with A inside (d) a line lifted at a gap
  27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) capacitor (c) motor (d) resistor
  28. 28.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a small empty box (c) a line lifted at a gap (d) a long and a short line
  29. 29.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
  30. 30.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
  31. 31.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) resistor (d) junction
  33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) motor (c) switch (d) cell
  34. 34.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with a cross (c) many long-short pairs (d) a long and a short line
  35. 35.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
  36. 36.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
  37. 37.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle against a bar (c) a dot where wires meet (d) a plain rectangle
  38. 38.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
  39. 39.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
  40. 40.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with a cross (c) triangle, bar and arrows (d) two equal parallel lines

Answer key

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

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