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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 426 · 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 a cross is the symbol for a wire. (a) False (b) True
  2. 2.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) cell (c) LED (d) bulb
  4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) capacitor (c) wire (d) junction
  5. 5.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a long and a short line (c) a plain rectangle (d) triangle against a bar
  6. 6.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) battery (c) ammeter (d) capacitor
  8. 8.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a straight line (c) a line lifted at a gap (d) a dot where wires meet
  9. 9.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) one tall, one short bar (d) a circle with M inside
  10. 10.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
  11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
  12. 12.✏️ 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
  13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) diode (c) battery (d) resistor
  14. 14.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  15. 15.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) many long-short pairs (c) two or more cell symbols (d) a plain rectangle
  16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
  17. 17.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with A inside
  18. 18.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
  19. 19.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  20. 20.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
  21. 21.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
  22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) LED (c) voltmeter (d) junction
  24. 24.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
  25. 25.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
  26. 26.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) bulb (c) ammeter (d) resistor
  28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) wire (d) bulb
  29. 29.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) a long and a short line (d) a circle with M inside
  30. 30.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
  31. 31.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  32. 32.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with A inside (c) a line lifted at a gap (d) two equal parallel lines
  33. 33.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a line lifted at a gap (c) a straight line (d) one tall, one short bar
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) ammeter (c) bulb (d) switch
  35. 35.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
  36. 36.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) bulb (d) resistor
  38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) motor (c) LED (d) cell
  39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) diode (c) ammeter (d) LED
  40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) voltmeter (c) diode (d) cell

Answer key

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

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