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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 222 · 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 diode. (a) False (b) True
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
  3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
  4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) wire (c) resistor (d) LED
  5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) switch (d) capacitor
  6. 6.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with an X in it
  7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) bulb (c) cell (d) wire
  8. 8.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
  9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) LED (d) switch
  11. 11.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a long and a short line (c) a line lifted at a gap (d) a circle with a cross
  12. 12.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a straight line (c) a small empty box (d) two equal parallel lines
  13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) capacitor (c) motor (d) diode
  14. 14.True or false: triangle, bar and arrows is the symbol for a junction. (a) False (b) True
  15. 15.Which drawing is the symbol for a switch? (a) a straight line (b) many long-short pairs (c) a line lifted at a gap (d) a circle with an X in it
  16. 16.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  17. 17.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) cell (c) battery (d) LED
  19. 19.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) triangle, bar and arrows (d) many long-short pairs
  21. 21.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
  22. 22.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  23. 23.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
  24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) cell (d) bulb
  25. 25.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) cell (c) resistor (d) capacitor
  27. 27.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) many long-short pairs (d) a plain rectangle
  28. 28.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) wire (c) battery (d) bulb
  30. 30.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) many long-short pairs (c) two or more cell symbols (d) a small empty box
  31. 31.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
  32. 32.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
  33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) battery (d) LED
  35. 35.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
  36. 36.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  37. 37.True or false: a circle with an X in it is the symbol for a voltmeter. (a) True (b) False
  38. 38.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) wire (d) resistor
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) cell (c) bulb (d) battery

Answer key

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

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