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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 397 · 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 cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
  2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) resistor (c) bulb (d) battery
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
  4. 4.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a dot where wires meet (c) a circle with an X in it (d) a plain rectangle
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) ammeter (d) resistor
  6. 6.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  7. 7.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) ammeter (c) battery (d) capacitor
  8. 8.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) motor (c) cell (d) LED
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) diode (c) resistor (d) LED
  11. 11.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
  12. 12.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with A inside (c) triangle, bar and arrows (d) a dot where wires meet
  13. 13.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a circle with an X in it (c) a dot where wires meet (d) a line lifted at a gap
  14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
  15. 15.True or false: a small empty box is the symbol for a motor. (a) True (b) False
  16. 16.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) LED (c) ammeter (d) bulb
  18. 18.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) motor (c) junction (d) switch
  20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) motor (c) diode (d) switch
  22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) switch (d) LED
  24. 24.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
  25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) motor (c) LED (d) wire
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) resistor (c) motor (d) bulb
  27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) LED (d) capacitor
  28. 28.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) wire (c) junction (d) motor
  30. 30.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True
  31. 31.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  32. 32.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
  33. 33.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) a circle with M inside (d) a straight line
  34. 34.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
  35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) LED (c) voltmeter (d) battery
  36. 36.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a plain rectangle
  37. 37.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  38. 38.Which drawing is the symbol for a motor? (a) triangle against a bar (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with M inside
  39. 39.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) triangle against a bar (c) many long-short pairs (d) one tall, one short bar
  40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) diode (c) resistor (d) ammeter

Answer key

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

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