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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 42 · 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, which part is drawn as triangle against a bar? (a) wire (b) switch (c) cell (d) diode
  2. 2.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) two equal parallel lines (c) one tall, one short bar (d) a line lifted at a gap
  3. 3.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a dot where wires meet (c) a circle with an X in it (d) two equal parallel lines
  4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) motor (c) junction (d) battery
  5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
  6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) bulb (c) switch (d) cell
  7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) switch (d) junction
  8. 8.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a plain rectangle (c) a line lifted at a gap (d) a long and a short line
  9. 9.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) capacitor (d) motor
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) switch (c) voltmeter (d) ammeter
  11. 11.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
  12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  13. 13.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
  14. 14.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
  15. 15.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with an X in it (c) a small empty box (d) a circle with A inside
  16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) wire (c) battery (d) cell
  17. 17.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
  18. 18.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  19. 19.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
  20. 20.True or false: a small empty box is the symbol for a junction. (a) False (b) True
  21. 21.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) switch (d) resistor
  23. 23.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) diode (c) voltmeter (d) bulb
  25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) bulb (c) ammeter (d) capacitor
  26. 26.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a straight line (c) one tall, one short bar (d) triangle against a bar
  27. 27.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
  28. 28.True or false: a straight line is the symbol for a bulb. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) diode (c) LED (d) capacitor
  30. 30.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  31. 31.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a dot where wires meet (c) many long-short pairs (d) triangle against a bar
  32. 32.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a dot where wires meet (c) a small empty box (d) a circle with an X in it
  33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  34. 34.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
  35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  37. 37.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a small empty box (c) triangle against a bar (d) a circle with V inside
  38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) resistor (d) diode
  39. 39.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) capacitor (d) wire

Answer key

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

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