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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 732 · 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: a long and a short line is the symbol for a cell. (a) True (b) False
  2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) capacitor (c) switch (d) cell
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
  4. 4.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
  6. 6.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
  7. 7.True or false: a straight line is the symbol for a motor. (a) True (b) False
  8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) cell (c) capacitor (d) LED
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) LED (c) cell (d) resistor
  10. 10.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
  11. 11.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) battery (d) bulb
  13. 13.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
  14. 14.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with V inside (c) a circle with M inside (d) a plain rectangle
  15. 15.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  16. 16.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with an X in it (c) many long-short pairs (d) a line lifted at a gap
  17. 17.Which drawing is the symbol for a diode? (a) a straight line (b) a circle with M inside (c) triangle, bar and arrows (d) triangle against a bar
  18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) cell (c) wire (d) resistor
  19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) diode (d) bulb
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) ammeter (c) bulb (d) resistor
  21. 21.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) cell (c) battery (d) bulb
  23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) LED (c) switch (d) diode
  25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  26. 26.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle, bar and arrows (c) one tall, one short bar (d) two equal parallel lines
  27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) switch (c) battery (d) LED
  28. 28.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
  29. 29.Which drawing is the symbol for a battery? (a) a small empty box (b) two or more cell symbols (c) one tall, one short bar (d) triangle against a bar
  30. 30.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
  31. 31.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a plain rectangle (c) triangle against a bar (d) a circle with an X in it
  32. 32.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
  33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  34. 34.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) many long-short pairs (c) two or more cell symbols (d) a circle with V inside
  35. 35.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle against a bar (c) a line lifted at a gap (d) a circle with M inside
  36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) switch (c) wire (d) junction
  37. 37.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
  38. 38.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
  39. 39.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
  40. 40.Which drawing is the symbol for a wire? (a) a circle with V inside (b) one tall, one short bar (c) a straight line (d) a circle with A inside

Answer key

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

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