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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 314 · 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 an LED? (a) two equal parallel lines (b) a circle with A inside (c) triangle, bar and arrows (d) two or more cell symbols
  2. 2.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) motor (c) wire (d) diode
  4. 4.✏️ 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
  5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) voltmeter (d) capacitor
  6. 6.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with a cross (d) a circle with V inside
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) LED (c) voltmeter (d) capacitor
  8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) battery (d) diode
  9. 9.Which drawing is the symbol for a motor? (a) a long and a short line (b) a line lifted at a gap (c) a circle with M inside (d) a circle with A inside
  10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) junction (c) capacitor (d) battery
  11. 11.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) battery (c) motor (d) resistor
  12. 12.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) two equal parallel lines (c) a line lifted at a gap (d) a straight line
  13. 13.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with a cross (c) a straight line (d) many long-short pairs
  14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) cell (d) battery
  15. 15.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  16. 16.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with A inside (c) a small empty box (d) two equal parallel lines
  17. 17.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  18. 18.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  19. 19.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) junction (d) diode
  21. 21.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
  22. 22.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
  23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  25. 25.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
  26. 26.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
  27. 27.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
  28. 28.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
  29. 29.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) triangle against a bar (c) two equal parallel lines (d) a circle with an X in it
  30. 30.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) switch (c) cell (d) bulb
  32. 32.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
  33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) voltmeter (c) battery (d) ammeter
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) diode (c) bulb (d) voltmeter
  35. 35.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
  36. 36.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
  37. 37.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) two equal parallel lines
  38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
  39. 39.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a straight line (c) a small empty box (d) one tall, one short bar
  40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True

Answer key

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

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