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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 943 · 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 switch? (a) a line lifted at a gap (b) two or more cell symbols (c) many long-short pairs (d) one tall, one short bar
  2. 2.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with M inside (c) a line lifted at a gap (d) two equal parallel lines
  3. 3.Which drawing is the symbol for an LED? (a) a plain rectangle (b) a circle with A inside (c) triangle, bar and arrows (d) triangle against a bar
  4. 4.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  5. 5.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
  7. 7.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
  8. 8.True or false: a small empty box is the symbol for a switch. (a) True (b) False
  9. 9.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
  10. 10.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with A inside (c) a long and a short line (d) a dot where wires meet
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) resistor (d) LED
  12. 12.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) many long-short pairs (c) two equal parallel lines (d) a plain rectangle
  13. 13.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  14. 14.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
  15. 15.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
  16. 16.Which drawing is the symbol for a junction? (a) a small empty box (b) two equal parallel lines (c) a circle with A inside (d) a dot where wires meet
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) motor (c) cell (d) ammeter
  18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) LED (c) battery (d) capacitor
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) motor (c) switch (d) bulb
  20. 20.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a straight line (c) a long and a short line (d) a circle with V inside
  21. 21.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  22. 22.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) ammeter (c) cell (d) capacitor
  24. 24.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
  25. 25.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) motor (c) wire (d) diode
  26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) ammeter (c) LED (d) cell
  27. 27.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a long and a short line (d) a line lifted at a gap
  28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) diode (d) battery
  29. 29.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
  30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) junction (c) wire (d) cell
  33. 33.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
  34. 34.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
  35. 35.True or false: a straight line is the symbol for a wire. (a) True (b) False
  36. 36.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with an X in it (c) many long-short pairs (d) one tall, one short bar
  37. 37.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
  38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) voltmeter (d) diode
  39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) switch (c) battery (d) wire

Answer key

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

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