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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 961 · 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 diode. (a) False (b) True
  2. 2.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  3. 3.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) a circle with a cross (d) a dot where wires meet
  4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
  5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
  6. 6.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) triangle against a bar (c) a circle with a cross (d) a circle with A inside
  7. 7.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a circle with an X in it (c) a dot where wires meet (d) a straight line
  8. 8.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
  9. 9.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a line lifted at a gap (c) a small empty box (d) a circle with M inside
  10. 10.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) wire (c) resistor (d) bulb
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) wire (c) resistor (d) voltmeter
  13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
  14. 14.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a circle with A inside (c) a line lifted at a gap (d) a circle with M inside
  15. 15.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
  16. 16.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
  17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) voltmeter (c) resistor (d) LED
  18. 18.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) capacitor (c) diode (d) LED
  20. 20.True or false: a straight line is the symbol for a battery. (a) True (b) False
  21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) motor (d) bulb
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) LED (c) capacitor (d) battery
  23. 23.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) motor (c) switch (d) diode
  25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) resistor (c) wire (d) ammeter
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) junction (d) capacitor
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) resistor (d) capacitor
  28. 28.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
  29. 29.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
  30. 30.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) a long and a short line (d) two equal parallel lines
  31. 31.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
  32. 32.True or false: a small empty box is the symbol for a diode. (a) True (b) False
  33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  34. 34.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  35. 35.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) many long-short pairs (c) triangle against a bar (d) a circle with an X in it
  36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a circle with an X in it (d) one tall, one short bar
  37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) wire (d) LED
  38. 38.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a plain rectangle (c) a straight line (d) a circle with a cross
  39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) ammeter (c) battery (d) junction

Answer key

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

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