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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 276 · 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 junction? (a) a circle with a cross (b) a line lifted at a gap (c) a long and a short line (d) a dot where wires meet
  2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) resistor (d) cell
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
  4. 4.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
  5. 5.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  6. 6.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
  7. 7.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
  8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) wire (c) resistor (d) motor
  9. 9.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
  10. 10.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
  11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  12. 12.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) one tall, one short bar (d) two equal parallel lines
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) battery (c) motor (d) ammeter
  14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) resistor (d) ammeter
  15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) capacitor (c) junction (d) resistor
  16. 16.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with A inside (c) a dot where wires meet (d) one tall, one short bar
  17. 17.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
  18. 18.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) many long-short pairs (d) a dot where wires meet
  19. 19.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
  20. 20.True or false: a straight line is the symbol for a switch. (a) True (b) False
  21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) ammeter (d) resistor
  22. 22.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) wire (c) resistor (d) capacitor
  24. 24.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  25. 25.Which drawing is the symbol for a battery? (a) a straight line (b) many long-short pairs (c) a line lifted at a gap (d) a small empty box
  26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  27. 27.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
  28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) cell (d) LED
  29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) junction (d) LED
  30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) capacitor (c) LED (d) voltmeter
  31. 31.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
  32. 32.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a small empty box (c) one tall, one short bar (d) a circle with M inside
  33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) battery (c) wire (d) cell
  34. 34.Which drawing is the symbol for a diode? (a) a plain rectangle (b) a long and a short line (c) triangle against a bar (d) a dot where wires meet
  35. 35.True or false: a straight line is the symbol for a diode. (a) True (b) False
  36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) wire (c) bulb (d) voltmeter
  38. 38.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  39. 39.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
  40. 40.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True

Answer key

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

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