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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 446 · 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: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) voltmeter (c) ammeter (d) bulb
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) voltmeter (c) LED (d) battery
  4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  5. 5.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a long and a short line (c) a circle with M inside (d) many long-short pairs
  6. 6.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with V inside (c) a circle with M inside (d) triangle, bar and arrows
  7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) bulb (d) LED
  8. 8.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  9. 9.Which drawing is the symbol for a motor? (a) triangle against a bar (b) many long-short pairs (c) two equal parallel lines (d) a circle with M inside
  10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) cell (c) ammeter (d) resistor
  11. 11.✏️ 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
  12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  13. 13.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with an X in it (d) one tall, one short bar
  14. 14.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
  15. 15.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
  16. 16.True or false: a straight line is the symbol for a resistor. (a) True (b) False
  17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
  18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) diode (c) junction (d) capacitor
  19. 19.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  20. 20.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with A inside (c) a small empty box (d) a circle with a cross
  21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) ammeter (c) cell (d) capacitor
  22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
  23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) capacitor (c) cell (d) battery
  24. 24.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a plain rectangle (c) a dot where wires meet (d) one tall, one short bar
  25. 25.True or false: a small empty box is the symbol for a switch. (a) False (b) True
  26. 26.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) resistor (c) bulb (d) voltmeter
  28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) cell (d) bulb
  29. 29.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) switch (c) diode (d) LED
  31. 31.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) diode (d) motor
  33. 33.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
  34. 34.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  35. 35.True or false: a straight line is the symbol for a wire. (a) True (b) False
  36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  37. 37.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
  38. 38.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
  39. 39.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
  40. 40.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False

Answer key

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

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