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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 273 · 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.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  2. 2.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) a straight line (d) two or more cell symbols
  3. 3.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) two equal parallel lines (d) a circle with a cross
  4. 4.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
  5. 5.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
  6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) switch (d) voltmeter
  7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) ammeter (c) bulb (d) diode
  8. 8.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
  9. 9.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with an X in it (d) one tall, one short bar
  10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
  11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) LED (c) bulb (d) ammeter
  13. 13.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  14. 14.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) junction (c) voltmeter (d) cell
  16. 16.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  17. 17.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) cell (c) diode (d) LED
  19. 19.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
  20. 20.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
  21. 21.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  22. 22.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
  23. 23.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
  24. 24.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
  25. 25.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
  26. 26.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) triangle, bar and arrows (c) a circle with an X in it (d) a dot where wires meet
  27. 27.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) bulb (c) voltmeter (d) switch
  29. 29.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) wire (c) diode (d) bulb
  31. 31.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
  32. 32.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  33. 33.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) a straight line (d) a circle with a cross
  34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) battery (d) switch
  35. 35.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
  36. 36.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a long and a short line (c) a plain rectangle (d) a circle with V inside
  37. 37.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
  38. 38.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a line lifted at a gap (c) a circle with A inside (d) a plain rectangle
  39. 39.True or false: a straight line is the symbol for a motor. (a) False (b) True
  40. 40.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a dot where wires meet (c) a long and a short line (d) a line lifted at a gap

Answer key

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

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