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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 262 · 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 straight line is the symbol for a wire. (a) False (b) True
  2. 2.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
  4. 4.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a small empty box (c) a circle with M inside (d) triangle, bar and arrows
  5. 5.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a line lifted at a gap (c) many long-short pairs (d) a straight line
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
  7. 7.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) diode (d) wire
  8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
  9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with a cross (c) a circle with V inside (d) two or more cell symbols
  10. 10.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
  11. 11.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) cell (c) battery (d) diode
  13. 13.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
  14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) battery (d) junction
  15. 15.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with A inside (c) one tall, one short bar (d) triangle against a bar
  16. 16.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a circle with a cross (c) two equal parallel lines (d) a small empty box
  17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) ammeter (c) switch (d) bulb
  18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) capacitor (c) resistor (d) LED
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) junction (d) LED
  20. 20.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  21. 21.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
  22. 22.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  23. 23.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) cell (d) LED
  25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) wire (d) voltmeter
  26. 26.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  27. 27.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) wire (c) battery (d) bulb
  29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) cell (c) battery (d) capacitor
  30. 30.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  31. 31.Which drawing is the symbol for a junction? (a) a circle with M inside (b) one tall, one short bar (c) a circle with an X in it (d) a dot where wires meet
  32. 32.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) LED (d) wire
  35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) wire (c) switch (d) LED
  36. 36.Which drawing is the symbol for a resistor? (a) a long and a short line (b) two or more cell symbols (c) a circle with an X in it (d) a plain rectangle
  37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) LED (c) cell (d) diode
  38. 38.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) a line lifted at a gap (d) a circle with V inside
  39. 39.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
  40. 40.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier

Answer key

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

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