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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 651 · 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.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) one tall, one short bar (d) triangle against a bar
  2. 2.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) voltmeter (c) resistor (d) bulb
  3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) diode (d) capacitor
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) cell (c) motor (d) ammeter
  6. 6.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) a line lifted at a gap (d) two equal parallel lines
  7. 7.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  8. 8.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) LED (c) cell (d) ammeter
  10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) capacitor (d) diode
  11. 11.Which drawing is the symbol for a motor? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with M inside (d) many long-short pairs
  12. 12.True or false: a small empty box is the symbol for a cell. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) ammeter (c) junction (d) bulb
  14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) switch (c) battery (d) cell
  15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
  16. 16.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
  17. 17.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with V inside (d) one tall, one short bar
  18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) wire (d) switch
  19. 19.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) two or more cell symbols (c) a line lifted at a gap (d) triangle against a bar
  20. 20.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
  21. 21.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) motor (d) diode
  23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) diode (c) resistor (d) LED
  25. 25.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with V inside (c) two or more cell symbols (d) a straight line
  26. 26.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) a plain rectangle (d) many long-short pairs
  27. 27.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  28. 28.Which drawing is the symbol for a switch? (a) a long and a short line (b) two or more cell symbols (c) a small empty box (d) a line lifted at a gap
  29. 29.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  30. 30.True or false: one tall, one short bar is the symbol for an ammeter. (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.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) cell (c) battery (d) bulb
  33. 33.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
  34. 34.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  35. 35.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
  36. 36.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
  37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) capacitor (d) junction
  38. 38.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
  39. 39.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
  40. 40.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False

Answer key

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

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