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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 285 · 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 an X in it is the symbol for a bulb. (a) True (b) False
  2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) wire (d) bulb
  3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  4. 4.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  5. 5.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a circle with a cross (d) a circle with M inside
  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.True or false: triangle against a bar is the symbol for a resistor. (a) False (b) True
  8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) voltmeter (c) battery (d) diode
  9. 9.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
  10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) ammeter (c) diode (d) battery
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) wire (c) bulb (d) battery
  13. 13.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
  14. 14.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  15. 15.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a straight line (c) triangle against a bar (d) a circle with V inside
  16. 16.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with an X in it (c) a circle with A inside (d) two or more cell symbols
  17. 17.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a circle with V inside (c) a circle with A inside (d) a line lifted at a gap
  18. 18.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) a line lifted at a gap (d) a plain rectangle
  19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) LED (c) diode (d) cell
  20. 20.Which drawing is the symbol for a battery? (a) a circle with A inside (b) many long-short pairs (c) a small empty box (d) triangle, bar and arrows
  21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) capacitor (d) switch
  23. 23.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) two or more cell symbols (c) triangle, bar and arrows (d) a small empty box
  24. 24.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
  25. 25.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
  26. 26.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) ammeter (d) junction
  28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) resistor (c) voltmeter (d) diode
  29. 29.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with M inside (c) a plain rectangle (d) a circle with V inside
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) battery (c) bulb (d) motor
  31. 31.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
  32. 32.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
  33. 33.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
  34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) wire (d) diode
  36. 36.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
  37. 37.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
  38. 38.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) cell (d) wire
  39. 39.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
  40. 40.True or false: a small empty box is the symbol for a resistor. (a) False (b) True

Answer key

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

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