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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 335 · 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 circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
  2. 2.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
  3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) capacitor (d) junction
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) bulb (d) voltmeter
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) switch (c) motor (d) cell
  6. 6.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two equal parallel lines (c) one tall, one short bar (d) a circle with an X in it
  7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) voltmeter (c) switch (d) battery
  8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  9. 9.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a plain rectangle (c) one tall, one short bar (d) a circle with A inside
  10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) switch (c) motor (d) wire
  11. 11.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with M inside (d) triangle against a bar
  12. 12.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) one tall, one short bar (c) a plain rectangle (d) a straight line
  13. 13.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
  14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) battery (c) switch (d) diode
  15. 15.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with a cross (c) many long-short pairs (d) a straight line
  16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
  17. 17.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
  18. 18.True or false: a small empty box is the symbol for a switch. (a) True (b) False
  19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) motor (c) cell (d) resistor
  20. 20.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
  21. 21.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) junction (c) bulb (d) switch
  23. 23.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
  24. 24.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) many long-short pairs (c) a long and a short line (d) triangle, bar and arrows
  25. 25.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  26. 26.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
  27. 27.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
  28. 28.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
  29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  30. 30.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with a cross (c) a long and a short line (d) one tall, one short bar
  31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) battery (c) cell (d) ammeter
  32. 32.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) voltmeter (d) battery
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) voltmeter (c) wire (d) diode
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) capacitor (c) bulb (d) diode
  36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) battery (c) cell (d) diode
  37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  38. 38.True or false: a straight line is the symbol for an LED. (a) True (b) False
  39. 39.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
  40. 40.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with V inside (c) a circle with a cross (d) a circle with M inside

Answer key

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

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