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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 608 · 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.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
  2. 2.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
  4. 4.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with an X in it (c) two equal parallel lines (d) triangle against a bar
  5. 5.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with V inside (c) a circle with a cross (d) a dot where wires meet
  6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) motor (d) resistor
  7. 7.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) bulb (c) motor (d) voltmeter
  9. 9.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
  10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) junction (c) cell (d) resistor
  11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
  12. 12.True or false: a small empty box is the symbol for an LED. (a) True (b) False
  13. 13.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  14. 14.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  15. 15.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
  16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) cell (d) motor
  17. 17.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with A inside (c) a line lifted at a gap (d) a small empty box
  18. 18.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
  19. 19.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  20. 20.Which drawing is the symbol for a diode? (a) many long-short pairs (b) two equal parallel lines (c) a plain rectangle (d) triangle against a bar
  21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) junction (c) diode (d) voltmeter
  22. 22.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a dot where wires meet (c) one tall, one short bar (d) two or more cell symbols
  23. 23.Which drawing is the symbol for a resistor? (a) a small empty box (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with A inside
  24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) cell (d) diode
  25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) battery (c) resistor (d) switch
  26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) junction (c) switch (d) ammeter
  27. 27.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
  28. 28.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  29. 29.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
  30. 30.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
  31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  32. 32.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) resistor (d) diode
  34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) capacitor (d) LED
  35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) capacitor (c) wire (d) motor
  36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) diode (c) cell (d) junction
  38. 38.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a plain rectangle (c) a circle with a cross (d) a circle with A inside
  39. 39.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
  40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) motor (c) LED (d) battery

Answer key

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

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