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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 161 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
  2. 2.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
  3. 3.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with a cross
  4. 4.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
  5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) junction (c) switch (d) cell
  6. 6.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  7. 7.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
  8. 8.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) triangle against a bar
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) diode (d) junction
  10. 10.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  11. 11.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
  12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
  13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) ammeter (c) diode (d) voltmeter
  14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
  15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) ammeter (c) cell (d) battery
  16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) voltmeter (c) switch (d) ammeter
  18. 18.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) a straight line (d) a circle with a cross
  19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) battery (c) diode (d) junction
  20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) capacitor (d) switch
  21. 21.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  22. 22.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) triangle, bar and arrows (c) a straight line (d) a plain rectangle
  23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) junction (d) LED
  24. 24.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) capacitor (d) junction
  26. 26.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  27. 27.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with V inside (c) a circle with M inside (d) triangle, bar and arrows
  28. 28.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
  29. 29.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) one tall, one short bar (c) many long-short pairs (d) a circle with M inside
  30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  31. 31.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
  32. 32.Which drawing is the symbol for an LED? (a) a circle with A inside (b) triangle, bar and arrows (c) many long-short pairs (d) a small empty box
  33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) capacitor (d) LED
  34. 34.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a circle with V inside (c) many long-short pairs (d) two equal parallel lines
  35. 35.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a small empty box (c) a circle with M inside (d) two equal parallel lines
  36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) cell (d) motor
  37. 37.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
  38. 38.True or false: a straight line is the symbol for a bulb. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) battery (d) wire
  40. 40.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False

Answer key

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

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