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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 884 · 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.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  2. 2.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
  4. 4.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with V inside (c) two equal parallel lines (d) a dot where wires meet
  5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) voltmeter (c) diode (d) battery
  6. 6.Which drawing is the symbol for a junction? (a) a small empty box (b) a straight line (c) a dot where wires meet (d) a circle with A inside
  7. 7.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two or more cell symbols (c) many long-short pairs (d) a small empty box
  8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
  9. 9.Which drawing is the symbol for a switch? (a) a plain rectangle (b) two equal parallel lines (c) one tall, one short bar (d) a line lifted at a gap
  10. 10.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a straight line (c) one tall, one short bar (d) a small empty box
  11. 11.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a circle with A inside (c) one tall, one short bar (d) two equal parallel lines
  12. 12.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) capacitor (c) junction (d) cell
  14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) diode (c) bulb (d) resistor
  15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
  16. 16.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with A inside (c) triangle, bar and arrows (d) one tall, one short bar
  17. 17.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
  18. 18.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  19. 19.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
  20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  21. 21.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) two or more cell symbols (c) a dot where wires meet (d) a circle with A inside
  22. 22.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a circle with M inside (d) many long-short pairs
  23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) cell (c) diode (d) junction
  24. 24.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) bulb (c) cell (d) resistor
  26. 26.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
  27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) cell (c) battery (d) capacitor
  29. 29.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
  30. 30.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) voltmeter (c) cell (d) wire
  32. 32.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
  33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) motor (c) voltmeter (d) bulb
  35. 35.True or false: a small empty box is the symbol for a cell. (a) False (b) True
  36. 36.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) capacitor (d) battery
  38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) motor (c) LED (d) bulb
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) resistor (c) bulb (d) ammeter
  40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) junction (c) LED (d) cell

Answer key

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

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