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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 564 · 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 a bulb? (a) one tall, one short bar (b) a circle with a cross (c) a circle with A inside (d) a line lifted at a gap
  2. 2.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a long and a short line (c) triangle, bar and arrows (d) two equal parallel lines
  3. 3.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
  4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) LED (d) ammeter
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) ammeter (c) bulb (d) junction
  6. 6.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
  7. 7.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) LED (c) resistor (d) switch
  8. 8.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) two or more cell symbols (d) two equal parallel lines
  9. 9.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  10. 10.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) battery (c) switch (d) cell
  12. 12.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
  13. 13.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a circle with a cross (c) a long and a short line (d) triangle against a bar
  14. 14.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  15. 15.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
  16. 16.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) wire (d) junction
  18. 18.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  19. 19.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) junction (c) diode (d) battery
  21. 21.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  22. 22.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
  23. 23.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a circle with an X in it (c) a small empty box (d) triangle against a bar
  24. 24.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) ammeter (d) bulb
  26. 26.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
  27. 27.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) voltmeter (c) junction (d) ammeter
  30. 30.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
  31. 31.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
  32. 32.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
  33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) cell (c) battery (d) voltmeter
  34. 34.Which drawing is the symbol for a battery? (a) triangle against a bar (b) one tall, one short bar (c) two or more cell symbols (d) triangle, bar and arrows
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) LED (c) ammeter (d) resistor
  36. 36.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) two or more cell symbols (d) a circle with a cross
  37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) wire (c) junction (d) bulb
  38. 38.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with V inside
  39. 39.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) ammeter (c) battery (d) bulb

Answer key

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

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