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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 74 · 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) wavy lines (b) straight lines (c) dotted circles (d) little stars
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
  3. 3.Which drawing is the symbol for a diode? (a) a long and a short line (b) a straight line (c) a line lifted at a gap (d) triangle against a bar
  4. 4.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with M inside
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) wire (c) ammeter (d) bulb
  6. 6.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with A inside (c) a plain rectangle (d) a long and a short line
  7. 7.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a small empty box (c) a straight line (d) a circle with M inside
  8. 8.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
  9. 9.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) ammeter (d) capacitor
  11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
  12. 12.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) diode (c) bulb (d) resistor
  14. 14.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
  15. 15.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
  16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) ammeter (d) cell
  18. 18.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a circle with a cross (c) a plain rectangle (d) a straight line
  19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) diode (c) bulb (d) ammeter
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) voltmeter (c) cell (d) bulb
  21. 21.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a small empty box (c) one tall, one short bar (d) a circle with A inside
  22. 22.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) cell (c) motor (d) resistor
  24. 24.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  25. 25.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) resistor (c) motor (d) capacitor
  27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) bulb (c) diode (d) resistor
  28. 28.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
  29. 29.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) diode (d) battery
  31. 31.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with V inside (c) many long-short pairs (d) a dot where wires meet
  32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) capacitor (c) battery (d) cell
  33. 33.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
  34. 34.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
  35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) diode (c) battery (d) cell
  36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) wire (c) motor (d) voltmeter
  37. 37.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
  38. 38.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
  39. 39.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) switch (c) battery (d) motor

Answer key

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

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