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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 359 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
  2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  3. 3.True or false: a straight line is the symbol for a motor. (a) True (b) False
  4. 4.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
  5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) capacitor (c) resistor (d) ammeter
  6. 6.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) triangle against a bar (c) one tall, one short bar (d) a circle with A inside
  7. 7.True or false: a small empty box is the symbol for a wire. (a) False (b) True
  8. 8.Which drawing is the symbol for a switch? (a) triangle against a bar (b) one tall, one short bar (c) a dot where wires meet (d) a line lifted at a gap
  9. 9.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with a cross (c) a small empty box (d) two equal parallel lines
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) cell (c) bulb (d) capacitor
  11. 11.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) cell (c) resistor (d) voltmeter
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) switch (c) voltmeter (d) motor
  13. 13.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
  14. 14.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
  15. 15.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
  16. 16.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with M inside (d) triangle against a bar
  17. 17.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
  18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) diode (c) cell (d) battery
  19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) capacitor (c) cell (d) switch
  20. 20.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a circle with A inside (c) a circle with V inside (d) a plain rectangle
  21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) junction (c) LED (d) capacitor
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) ammeter (c) bulb (d) junction
  23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) cell (d) battery
  24. 24.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
  25. 25.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) cell (c) battery (d) ammeter
  27. 27.Which drawing is the symbol for a diode? (a) a circle with M inside (b) one tall, one short bar (c) a dot where wires meet (d) triangle against a bar
  28. 28.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  29. 29.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
  30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  31. 31.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) capacitor (c) cell (d) resistor
  33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  34. 34.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
  35. 35.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a long and a short line (c) triangle, bar and arrows (d) two or more cell symbols
  36. 36.Which drawing is the symbol for a cell? (a) a circle with M inside (b) two equal parallel lines (c) a straight line (d) a long and a short line
  37. 37.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
  38. 38.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) motor (c) wire (d) voltmeter
  40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) voltmeter (c) battery (d) cell

Answer key

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

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