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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 632 · 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.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
  2. 2.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) motor (c) diode (d) voltmeter
  4. 4.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) wire (d) battery
  6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) ammeter (c) junction (d) cell
  7. 7.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) triangle, bar and arrows (d) a circle with A inside
  8. 8.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) triangle, bar and arrows (c) a long and a short line (d) a small empty box
  9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
  10. 10.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) resistor (c) voltmeter (d) battery
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) capacitor (d) wire
  13. 13.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  14. 14.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
  15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  16. 16.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
  17. 17.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) motor (c) bulb (d) LED
  19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) bulb (c) cell (d) ammeter
  20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) diode (c) resistor (d) junction
  21. 21.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  22. 22.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  23. 23.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) two or more cell symbols (d) a circle with a cross
  24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) capacitor (c) cell (d) bulb
  25. 25.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
  26. 26.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a small empty box (c) a plain rectangle (d) two or more cell symbols
  27. 27.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
  28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  29. 29.True or false: a small empty box is the symbol for a switch. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) motor (c) capacitor (d) ammeter
  31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) bulb (c) switch (d) resistor
  32. 32.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with V inside (c) a long and a short line (d) a circle with a cross
  33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) resistor (c) motor (d) cell
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) resistor (c) voltmeter (d) bulb
  35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) bulb (c) battery (d) switch
  36. 36.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with M inside
  37. 37.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  38. 38.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with A inside (c) a circle with V inside (d) a line lifted at a gap
  39. 39.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
  40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True

Answer key

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

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