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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 1 · 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: two or more cell symbols is the symbol for a battery. (a) True (b) False
  2. 2.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
  3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) resistor (c) diode (d) motor
  4. 4.Which drawing is the symbol for a switch? (a) a straight line (b) two or more cell symbols (c) a line lifted at a gap (d) a plain rectangle
  5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
  6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) motor (d) LED
  7. 7.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  8. 8.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) switch (c) motor (d) ammeter
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) ammeter (c) bulb (d) capacitor
  11. 11.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with M inside (c) two or more cell symbols (d) a plain rectangle
  12. 12.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) two or more cell symbols (d) a plain rectangle
  13. 13.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) wire (c) motor (d) battery
  14. 14.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) LED (c) cell (d) bulb
  16. 16.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
  17. 17.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
  18. 18.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
  19. 19.True or false: a straight line is the symbol for a wire. (a) False (b) True
  20. 20.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
  21. 21.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) voltmeter (c) capacitor (d) wire
  23. 23.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a circle with M inside (c) a long and a short line (d) triangle against a bar
  24. 24.Which drawing is the symbol for a voltmeter? (a) a straight line (b) one tall, one short bar (c) a circle with V inside (d) a plain rectangle
  25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) resistor (d) LED
  27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) motor (d) bulb
  28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) switch (d) junction
  29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
  30. 30.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a plain rectangle (c) a straight line (d) a circle with M inside
  31. 31.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  32. 32.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
  33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) LED (c) battery (d) junction
  34. 34.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with M inside (c) triangle, bar and arrows (d) a small empty box
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) switch (c) bulb (d) cell
  36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) LED (c) capacitor (d) cell
  37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  39. 39.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
  40. 40.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True

Answer key

  1. True
  2. False
  3. diode
  4. a line lifted at a gap
  5. the longer line
  6. wire
  7. True
  8. False
  9. ammeter
  10. bulb
  11. a plain rectangle
  12. a circle with A inside
  13. motor
  14. True
  15. cell
  16. quick and clear for all
  17. False
  18. False
  19. True
  20. False
  21. False
  22. capacitor
  23. triangle against a bar
  24. a circle with V inside
  25. straight lines
  26. voltmeter
  27. battery
  28. cell
  29. True
  30. a circle with M inside
  31. True
  32. False
  33. resistor
  34. a small empty box
  35. bulb
  36. junction
  37. True
  38. True
  39. False
  40. True

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