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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 43 · 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, which part is drawn as a small empty box? (a) resistor (b) capacitor (c) bulb (d) ammeter
  2. 2.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) many long-short pairs (d) two or more cell symbols
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) capacitor (c) cell (d) diode
  4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  5. 5.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with A inside (d) a circle with M inside
  6. 6.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
  7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
  8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) resistor (d) wire
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) wire (d) junction
  11. 11.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) triangle against a bar (d) one tall, one short bar
  12. 12.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
  13. 13.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
  14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) diode (d) bulb
  16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) wire (c) cell (d) bulb
  17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) resistor (c) junction (d) battery
  18. 18.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) wire (c) bulb (d) motor
  20. 20.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) cell (d) wire
  22. 22.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) motor (c) switch (d) bulb
  24. 24.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
  25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) bulb (d) cell
  26. 26.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
  27. 27.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a circle with V inside (c) a dot where wires meet (d) triangle against a bar
  28. 28.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a straight line (c) a line lifted at a gap (d) a circle with M inside
  29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  30. 30.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) bulb (d) wire
  32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) LED (d) resistor
  34. 34.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) a circle with V inside (d) two or more cell symbols
  35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  36. 36.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) a dot where wires meet (d) two or more cell symbols
  37. 37.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with a cross
  38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) battery (c) capacitor (d) cell
  39. 39.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a long and a short line (c) a straight line (d) a circle with V inside
  40. 40.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False

Answer key

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

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